Was there a reason to delete the old one and replace it with a new object? That seems to have violated the "keep the history" principle of OSM. I agree with the name change though

In this change you seem to have moved around the boundaries for "Seaton Park East", "Seaton Park West", and "Henry Park" (the objects predated this change). But I can't find any proof they are actually called that anywhere? There is this Smithsonian article that discusses it: https://siarchives.si.edu/blog/quidditch-henry-park. Do you have proof of their boundaries somewhere?

For instance, this NPS map seems to show both designations encompassing much more area than you've cut them down to: https://www.nps.gov/npgallery/GetAsset/fc2d8431-d777-4671-bd6e-48b4902585a6

Hey there,
It looks like in this and in a few other changesets, you really changed the boundaries of the National Mall park relations. It seems we're left with two small relations: relation/21064981 and relation/21062691, that don't seem to encompass what I thought defined the National Mall and the National Mall and Memorial Parks areas. Can you clarify what sources you were using for these changes and what your goal was?
Thanks!
Will

Hello Jenny,
Thanks for explaining the issue in more detail. Coincidentally, I actually used to live right around the corner on Mentone Ave, so I can definitely sympathize with how annoying all the cut-through traffic must be and how jammed up Overland and Venice can get!

I'll echo spatialia and say that Glendon Ave's current OpenStreetMap tagging of highway=residential already communicates that it's a local access road that routers shouldn't favor for through traffic, but is nonetheless a part of the city road network and legally open to the public. So highway=service isn't appropriate, that's for alleyways and driveways and the like, not roads that provide the main access to the buildings along it.

While it's tempting to add access=destination, in OSM we adhere to an "on the ground" principle. So to tag that there has to be a sign, like "No Through Traffic", or a well-known law that prohibits it. I don't think either are the case here.

Really, whichever routers are suggesting Glendon as a cut through to avoid Overland need to penalize leaving a major street more strongly. Helpfully, another OpenStreetMap mapper has just added the existing speed bumps to Glendon: changeset/186150201. That will hopefully deter any truck routers that use OSM at least, although each system considers slightly different aspects of the roads. And we're no help with Google or other proprietary maps unfortunately.

Hope this helps! And sorry if it's more info than you might have bargained for haha.
Best,
Will

Hi there, and welcome to OpenStreetMap! In this edit it looks like you changed Glendon Ave to a private driveway, which I think is a mistake. Is there something else you were trying to do? In the meantime I'm reverting this change.

Reverted in changeset/185406122

Should this really be in OpenStreetMap if it's completely defunct and mostly razed? It seems better suited for OpenHistoricalMap

The name of the city is definitely just Washington, just like the name of Cleveland is not Cleveland, OH. Reverting this

This is quite a spiky polygon that does not align with the mapped buildings, can you share your source? Also, I don't think leisure=park is an appropriate tag for sites like this per the wiki definition, and you seem to have removed the website link and fee information rather than transferring them.

Just noticed this change. I really don't think Highway 1 along the coast here should be trunk. It's not a major through route between major cities and is famously not a high speed route, at this point it's basically just used for touristic purposes and to link very small communities.

Are these really railway=abandoned? It doesn't look like there is any trace left on the ground, which might mean it doesn't belong in OSM. This information might be better for OpenHistoricalMap: https://www.openhistoricalmap.org/about

Hi there, and welcome to OpenStreetMap! Just a note, the convention in Washington, DC, and indeed throughout the United States, is that abbreviations are fully spelled out in the name= tag, so "M Street Northwest" is correct here, not "M St NW".

Just to follow up on this, I visited Glen Echo this weekend and it convinced me that it is definitely not currently a theme park by OSM definition. I think the wiki definition of amenity=arts_centre describes Glen Echo reasonably well as a venue for a variety of art exhibitions/performance spaces, so I retagged it as such, still dual-tagged with leisure=park.

Hi, it seems like you ignored the note= tag on node/4348916993, Mens is not a branch and men;women is wrong on this store. The iD validator is useful but please exercise care before blindly agreeing with it.

That is tagged with armrest=yes, dispensing=yes is usually for pharmacies

Why is dispensing=yes tagged on a bench?

The bookstore was already mapped, please check first before uploading a new object

Hi there, in this changeset you appear to have removed all the traffic controls (signals and stop signs) from the streets that intersect L St (e.g. Capitol, 1st St NE). If you are going to separate out the signals like this, which I find a little pointless but know isn't wrong per se, please make sure you replicate them in all directions.

Please don't attach landuse to roads like this. It makes it much harder to modify in the future and is not accurate. See osm.wiki/Land_use#Mapping_land_use_in_more_detail