As source you give survey, does this mean that the construction area you created on top of the Arua Hill pitch is no longer a community park and sports area ? Mapilary imagery of feb 2018 shows the contrary, shows it still as a playground.

You deleted a still existing building, Biryani House garage in the garden. It is hardly visible in latest imagery since overgrown by trees and was incorrectly aligned. Corrected it in changeset/105702922. Please stop deleting buildings in case of the slightest doubt and contact mapper of the original to verify. Use lifecycle tags like raze: or disused: instead of deleting.

Hello Jean-Marc, created a new calibration point in changeset #105700682. Roundabout on the Northern Bypass (find it in the Imagry Offset Database). I stopped storing offsets since they are only applicable for a specific source and for a limited time since imagery gets updated. Buildings and most of the minor roads are misaligned from various HOT projects, working on awareness in HOT teams about importance of correct offsets. Except the major roads around the roundabout didn't clean up the area but buildings are generally seriously offset. Feel free to help to correct. Please be aware that the Northern Bypass at this time is still a large construction area, which means highway classification might change over time along a single named road, we update them as the works proceed. Many roads are incorrectly tagged though, especially unclassified is used to often for major roads which should be tertiary and secondary. Are you still using ESRI ? Maxar is much more up to date for Uganda in general.

I used the Maxar Premium Imagery, you can always find that in the source of the changeset. Determining the date of Maxar Imagery might be a challenge since the metadata is not accisble through any OSM editor. However, other resources using also Maxar might give you a clue, so referencing some recent new buildings in Kibuku indicates that the Maxar Premium Imagery in OSM is from 01/2018, so much more recent then the 02/2016 you refer in the source of the buildings added. Regarding offsets, yes they were updated by another user in 2019, incorrectly, he aligned roads with his imagery and even changed many road classifications. The imagery originally was aligned according gpx tracks, as stated in the changeset comment, in an older HOT project. So I tried to find out the correct calibration of the map. Nearby, the Fort Portal - Ntoroko road (a bit south of your changeset) has a very accurate GPS track stored and freely accessible in OSM. The land north of this road is fairly flat, south is the Rwenzori's. Offset remains fairly constant across large distance in flat areas, so it is safe to use it for your area of interest. For your convenience I added an angular road plot in Kibuku town which can be accessed thorugh the Imagery Offset Database, in JOSM. If you use iD I can give you the exact location. These are calibration points, so no offsets for the imagery you are using, you have to determine the offset and align imagery correct in regard to these calibration points before you start mapping or changing anything. So from now on it is safe to re-align your imagery and change the position of the buildings on the map. Never change map to fit your imagery as no imagery is correctly calibrated, none. For your convenience for the current imagery available in OSM, the offsets are as follows:
Bing = -7.17; 1.94 (imagery capture date up to 02/2016)
Esri (clarity) beta = -0.15; -4.48 (imagery capture between 03/2016 and 11/2018)
Maxar Premium = 5.74; -1.12 (imagery capture 01/2018).
The buildings I used to check for imagery dating are at 0.939 , 30.238 . You can verify those with the dating of your imagery to find out what is the most recent but as far as I am concerned it doesn't lake sense to import data based on imagery which is older of what we have. Importing is discouraged anyway since it leads to this kind of inaccuracies.

The source you are referring to is not accessible nor verifiable, please supply decent change comment (osm.wiki/Good_changeset_comments)and valid source URL. Licensing of this source is not verifiable, it is not listed and referred to in the project description (osm.wiki/Organised_Editing_Guidelines). Please correct and justify.

Same comments as on changeset/104534545#map=12/3.4050/30.9039. Waiting for your replies.
Also the mentioned source is dubious. Is it's licence compatible or is there a waiver ?

These projects suppose to add buildings, not delete. Also major shifts are made to roads. The imagery you use is private and incorrect aligned. Before any mapping you should align the imagery with the existing GPS tracks or map, not the other way around. Please repair.

Seems this is part of the large scale building imports in UG, however the changeset comment does not give a project reference number or any useful information. This is not according the Good Practices of OSM.

Can you please explain why you changed the international border between UG and DRC ?

Can you please explain why this changeset changed the international border between DRC and UG and why you are doing mass deletions ?

Yet another shift in the international border between DRC and UG and ongoing mass deletions ? Please explain. Again a reference to the project 8886 which I can't find on HOT website.

Project 8886 seems not to exist on HOT website. Please explain what you did in the changeset comment.

Can you please explain why this changeset changed the international border between DRC and UG and why you are doing mass deletions ?

Project 8886 seems not to exist on HOT website. Please explain what you did in the changeset comment.

Can you please explain why this changeset changed the international border between DRC and UG and why you are doing mass deletions ?

Dear, even after validation the buildings remain misaligned. Some are round huts but drawn still as square buildings. In this case the misalignment was caused by previous changes to correct aligned roads according GPS tracks and re-alignment to satellite imagery. Everything is off by 5m now. I created another calibration point in Kibuku and re-aligned the roads again to the correct GPS tracks, UNRA GPS, Mapillary and OpenStreetCam. Please start mapping only after aligning your imagery to GPS tracks in OSM or, if not available the existing roads. The imagery you use is not correct, NOT the map.

No not administrative. All wetlands are government land by law, as well as lakes, rivers etc... The boundaries are never gazetted however, even government violates them, but when it comes to protection and eviction reference can go back to aerial imagery as far as 20 years. WHole wetlands are no longer distinguishable on aerial photograps, because they are completely covered with slums. They do exist underneath the buildings, causing typical wetland behaviour like floods, uncontrolled growth of mosquitos etc... especially in Kampala. So we map them based on historical maps, old imagery like bing and then survey in the field. This might be a daunting and delayed task, the surveying, as you risk your dear life as soon as locals observe you making pictures and notes about the fact their houses are on government land or government wetland as you like. So it's both, administrative but most important physically. If you like to read more about how terrible the situation is read this report:https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwih286Uya7wAhUE8eAKHUjoCyoQFjABegQIBBAD&url=http%3A%2F%2Fwww.ug.undp.org%2Fcontent%2Fdam%2Fuganda%2Fdocs%2FUNDPUg17%2520-%2520Uganda%2520Wetlands%2520Atlas%2520Volume%2520I%2520_Popular%2520Version.compressed.pdf&usg=AOvVaw06r6l5Zt4FGdbMDnI7UpFh

Might be, so what is the problem moving the tree instead of deleting it. If it's cut then its very important to know because these are large trees and a stub or the roots might still be there, and will remain there for the next 50 years as we have many hardwood trees, in many cases protected by species., something you can't determine from satellite imagery. Anyway, in this case I added them again, I didn't see the any problem with them, are navigational aids and very significant. So feel free to reference the revert, their is no problem with it. I stopped using OSmose, the number of false warning their is so extensive that it's hardly usable, especially in areas like ours with again, limitd resources. I use JOSM, try to solve every warning before uploading and it didn't have any problem with the trees. I also checked them visually before upload and there was nothing wrong with them, shown on all imagery. The reverted changeset is 104073665.

It is not about economical mapping, it's about respect for what other mapper try to achieve, even if it looks terrible. Maybe they just want to map "there is abuilding there" or in the instance when they were surveying not able to access convenient mapping tools. Deletions in most cases are wrong. You keep on sourcing Esri, but the deletions and additions you made are not according to that imagery. The razed: and demolished: prefixes, the lifecylce tagging is used and invented for that purpose, to tag removed items. For your landuse relation I added the disused: prefix, also lifecyle. All common practices to avoid deletions and respect others work. Especially in our region, access to the internet, laptops, smartphones takes a serious financial effort, it doesn't motivate anyone seeing the work and resources worked for so hard to be deleted.

Deletions however are not OK, we defintely disagree on that basis. Not out of respect to the previous editor, neither by the global OSM community. Actually we don't care how outdated the info might be, it's what local communities are able to access, hat was done in previous projects and keeping history available for all, for obvious reasons. There might be some conservative views about this, but we are a free and open community, so opinions change and adopt to the reality and needs as they currently lice in the community. Please, don't delete.