We use full spellings of street names in OSM to avoid any confusion that software has trying to unabbreviate the name.

Trailheads can be tagged on the trail. I went ahead and made the change. See osm.wiki/Proposed_features/trailhead - It's still in proposal status, but over 500 trailheads have been added to the OSM.

Michael - thanks for the reminder. I know better.

I moved the apartment building you added to it wasn't on the alley. Although I'm not sure what will have to the alley once construction is completed.

Only use name for buildings with established names.

The building outline should only cover the actual building. Parking lots are separate features. I made the correction to the building.

Can you add a tag to describe the Hospice Friends feature? Is it an office=ngo or some kind of shop?

please remember to square your buildings to match the imagery. (select the outline and use the "s" key to square it.)

I added a building tag but can you give more detail why this building is called the historic ft sampson tourist destination? Is there a website?

The storage area isn't a building. I changed it to landuse. You can add the individual buildings if you like.

I think you might have been trying to do a building outline. Use the area tool in iD to create an area and tag it as building=apartments. I went ahead and made the change including merging the node with the outline

I expanded the street name for 50th Court South - OSM uses full names to prevent problem software has expanding abbreviated names.

missing and incorrect tags. This area appears to be residential not an area with retail offices.

Unfortunately it isn't a geopdf or you might be able to open it in iD or JOSM. WA RCO has some trail data for the state. We are missing a couple of trails in the section north of HWY 20, and a bunch of trails south of HWY 20. If you want to give the JOSM editor a try, I could send you a shapefile with their trails. Check out learnosm.org for help with JOSM.

I added the address in the changeset comment to the node you added. All features, nodes, ways and polygons need proper tags otherwise they are pretty much useless. I'll send you a message with some suggestions on how to learn more.

Thanks for improving the park. I did some of the initial trails a while back but haven't been back since.

I removed the living streets under the powerlines. Not sure what you where trying to accomplish, but please remember that many applications use the data and your edits are live once you upload

You ended up with two buildings on top of each other. I removed one of them

Mikes Seafood was in the wrong location. I merged it with the existing node to include the new information you added.

I think you wanted to just add a node, since the business doesn't occupy the entire building. I deleted the duplicate building and moved the tags to a new node. I did change the building to a commercial building.