This link to official sources is already contained in the ref:cadastre tag. The actual url doesn't need to be tagged - it can be generated automatically. And as urls like these tend to change often having only the reference number in the database is very much preferable.

Thanks for the long description!
I'd like to suggest the following additional tags to mark it as a special thing during emergencies and to explicitly exclude normal emergencies:

emergency=no
emergency:amenity = clinic
emergency:hazard_type = epidemics

The keys are all already in use, albeit not in the context of a clinic for epidemics.

Hi,
could you explain the meaning of these tags?
amenity = clinic
emergency = yes
emergency:medical = no
What kind of emergency is handled at this clinic, if it is not medical?

Hi,
what's the meaning of the opening hours tags here? can't you park outside of these, or is anybody allowed to park then?

Thanks! The best would be to have a picture of the actual pumps. They are required to label them with the actual generic type of fuel.

Could you check this bicycle parking, it got a strange 'ulock' tag.
node/12703742720#map=19/40.541773/-112.050004

The gas station also got several fuel tags that are not used in other places. These are branded names, that should be translated to generic names like fuel:diesel_b7 or fuel:biodiesel

way/1314245762

Hi,
you added many 'NUMAR' tags here. Are these housenumbers? These should be tagged as "addr:housenumber".

Hi,
you used a large amount of recycling tags that are not used in any other place. Could you have a look to the Wiki to check the common tags for the materials that can be recycled here?
amenity=recycling

The "Finland Scheme" is long outdated. The wiki page you cite has been written 12 years ago, without updates since.

The discussion about traffic_sign:id was very broad. The situation for destination signs is a lot simpler. Any new scheme can be extended throughout the whole of Europe without problems - and the existing scheme is almost capable of it, with just some minor tweaks and extensions.

Please write a request for comments in the international tagging section of the forums.

" at the forum thread that we only talk yopaseopor and myself. That's because we are the only two users in the Catalan community"

That's part of the problem. Traffic signs are not a local thing, but globally (or at least Europe-wide) very similar. A tagging scheme can't be discussed in a small local group, it needs to involve the whole community. That's what proposals are for.

Please don't use changeset comments to explain things, this information can't be found later.

Hi Xavier,
please let me repeat my request: This new scheme for destination signs adds huge amounts of undocumented tags (115 new keys just today!) that are of no use to any other data consumer. We absolutely need a proper documentation and discussion before these get into such widespread use.

Tracing and copying are different things, and both might be fine or not. The import process is there to find out about such differences before beginning the import.

If this is an import, you need to follow the OSM Import Guidelines:
osm.wiki/Import/Guidelines

On the page you linked I couldn't find a license for this data. Are you sure the data is compatible with the requirements of OSM and ODbL?

Reminder: Please check your tags for spelling mistakes! Things like "wate way", "wateway", "water way" are useless for OSM.

Please check your upload routine. 20,000 "gpx:ele=0.0" tags are useless and should not be uploaded.
The amount of nodes also suggests that these are coming from an external source and not from a "survey"?

Hi,
these buildings and plots all got very strange 'name' tags. The 'name' tag is only for the actual name of an object, not for a description or to add a label on a map.
Could you have a look and check this?

Please stop spamming the OSM database while testing your software. There is a dedicated development API for this purpose.

Hi, welcome to OSM.
These nodes don't have any common tag to describe what they are. In OSM we have to use a well-defined set of tags to allow all software and all other users to understand what they mean.
If you look at the tags without knowing what it is and without reading the changeset comment, there is no way to understand what these objects are. Here's the relevant Wiki page describing how bicycle parking is mapped:
amenity=bicycle_parking

248 points sounds like you're copying them from somewhere. What is the source, and is its license compatible with OSM? For importing data, there is a dedicated set of rules:
osm.wiki/Import/Guidelines

Hi,
you added two uncommon tags to the bus terminal: "jeep", "tricycle". What do they mean?