You deleted the plaza itself, and added a less-detailed park area. The park was fine (it is technically a park), but the park and the pedestrian area represent different things. One represents the administration/landuse (park), while the other is the physical surface (pedestrian area), and can be used by pedestrian/bicycle/transit routing engines.

The reason for the multipolygon is mainly so that the pagoda doesn't get hidden behind the pedestrian area. There are also steps/benches around/under it, so it's not really contiguous with the plaza anyway.

The highway=street_sign tag is there because it functions (both historically and currently) as a street sign. Looking at taginfo highway=street_sign is the most common tag for such features (even though it is undocumented).

It's not a typo. This is a pair of monumental stone street signs (the kind that have the name of the street on them, not a traffic sign) that were built as a formal gateway to the small subdivision on the east side of College Ave. These kind of stone-column street signs are fairly common on the west coast in areas built around the 1900's-1930's but there isn't really a good tag for them currently, and most are still unmapped.

Why do you keep vandalizing the map like this? Most people would have gotten bored by now.

Stop messing things up for everyone else. Please.

There was already an existing relation for the Bay Trail. ( relation/325779/ ) I've merged these members into that one.

It looks like you've set the default name (name)=* of this restaurant to "Greenburger's", and the English name (name:en)=* to "Nara". This doesn't make much sense.

If the name of the restaurant changed you usually only need to change the name=* tag. The name:en=* tag is really only necessary if it has a name in English which is different from the default, and changing it doesn't change the default name.

please stop

Hey, you deleted the buildings here along with the shops; please don't do that unless the buildings have actually been demolished. You only need to remove the tags that actually apply to the closed businesses (in this case shop=* and name=*) I have undeleted the buildings.

Hi, I noticed that you've been merging place of worship nodes with some of the buildings you've traced. That's probably not a good idea unless it's really obvious they're correct, since most of them were imported from the GNIS and are usually not in exactly the right location. Sometimes they're several blocks away from the actual location. The names and locations can also be decades out of date, and it takes some research to figure out which specific building they currently occupy, and if they still exist.

Hi, I noticed that you've put quite a bit of effort into adding things to the map of Stockton over the last week. Unfortunately, nearly everything you did was either fictional or broke the map somehow! Your changes have been reverted. (Thanks for mapping Shropshire park, though)

Hi, I'm having a hard time figuring out the rationale behind some of the changes here. Clay, Jefferson, Castro, 6th are all fairly important thoroughfares and should not be tagged as highway=residential. It also looks like you merged a number of segments together for some reason, which messed up the turn-lane tags and bus routes. It's generally a bad idea to merge street segments like that unless you're 100% sure that all the information on both segments is identical. You also added foot=no to part of a residential street near Hilltop, which is very unlikely (foot=no means pedestrians are not allowed)

Hi,
Why did you add bike lanes to the full length of 5th Ave? Have they been added recently? You also added a three-block long turning lane on E 8th, and merged two blocks of Elmwood Ave together creating an impossible one-way dead end, both of which seem unlikely to be true.

Hi,
When you delete and redraw buildings as you've done here you are often removing information (usually the building=* tag, but also names, amenities, and other tags). Please be more careful. Also, I see that you've merged several POIs with buildings (such as way/313916666 ) where the POI is only one tenant in the building and does not occupy the entire space; that's probably not the best thing to do.

Hi. The toll plaza was already correctly mapped; there is no toll northbound and the toll booths on that side were removed a while ago (at least a couple of years). Please consult the link in your changeset comment ;) Thanks! I have reverted this changeset.

Hi, openstreetmap is a map of the real world that is used by many people for a variety of purposes. Please only add things that actually exist in reality. Thanks! Your changes have been reverted.

Why did you delete this school? I have reverted your deletion, since it appears to still exist.

Hi, why are you changing the building=* tags of almost every building you edit to building=yes? Please don't do that unless the building type is actually incorrect, since it removes valid info. Please see: building=*

Hi, welcome to openstreetmap. Your house is not a park! I have reverted your changes. Please only add things that actually exist in the real world. Thanks!

Hi, if you would like to scribble on a map you might consider printing out a copy and using a pencil. If you are trying to catch pokemon there is a large park not two blocks from this location you could visit. Thanks! I have reverted your scribbles.

Hi, in this edit you added yet again a park which clearly does not exist. I have reverted your changes.