Are you sure the fire station and the A&W share a building?

You sure about that curve on Portola Court? The old, straight road looks like a better match to the Bing and Esri imagery.

As of last November's Sentinel-2 imagery, this area was very much under construction, and "Nashville Park" was simply an area of bare dirt.

Pretty sure that the entire lake doesn't count as a swimming area.

"Secondary road" is meant for relatively major roads -- ones almost as important as US-2 -- not driveways.

The "HVAC" tag is used for business that provide HVAC design, installation or maintenance services.

For tagging an individual machine, it looks like "man_made=hvac_unit" is the best option, but it doesn't have a preset. Instead, you'll need to add the tag manually, by clicking on the "all tags" header in the left-hand pane of the editor, clicking the "+" button, and entering "man_made" into the left-hand column and "hvac_unit" into the right-hand one.

In addition to whatever you were trying to do in Edmonton you pulled sections of footpath across the map in China and Calgary. Please be more careful with your editing in the future.

"Educational Institution" offices seems reasonable. It at least seems like it's in the correct general category ("office").

Are you sure the various offices you've added here are best described as "tourist information"? I'm not sure how I'd tag them, but that doesn't seem right to me.

Please don't put descriptions into the "name" field like you've done here. Computers tend to be rather literal-minded, and will see this as being a building named "Vacant".

Please don't glue parking lots to buildings like you've done here. Most parking lots don't actually run right up against buildings, and it's a pain to fix it if you need to, for example, add a bike rack between the building and the parking lot.

There's one more thing you can do to indicate that it's a private laundry: add the "access=private" tag.

You'll need to do this manually: with the building selected, click the "All tags" label at the bottom of the left-hand panel to expand it, click the plus sign at the bottom of the list of tags, and enter "access" in the first column and "private" in the second column.

It's much like setting the "allowed access" field for a road or a parking lot, but it's a rare enough thing to do that there isn't a dedicated user-interface field for it.

The best imagery in the Spokane County area is "Esri World Imagery". It's newer, sharper, and better-aligned than anything else.

And reverted.

The easy way would be for someone to use the JOSM "revert changeset" tool. If nobody else does it first, I'll get to it in a few hours.

If the signs don't exist, don't tag as if they did. Advisory speeds on exit ramps are reasonably common, but I'm pretty sure exit 299 doesn't have one -- I didn't map it as having one, and I've got pretty good coverage of I-90 between Spokane and Butte.

Where are you getting these speed limits from? In my experience, freeway off-ramps almost never have speed limits, and and rapid-fire speed limit changes like you've added to Appleway are nearly as rare.

Are you sure the gas station you added to Goodsprings is in the right place? I'm not seeing anything gas-station-like in the aerial imagery, and it doesn't fit the usual pattern of where people build gas stations.

The "apartment complex" tag is meant to go around the entire area - buildings, parking, garages, lawn, and all. There's also an "apartment building" tag for the actual building.

I've only got one or maybe two pictures of the large open area of Holmberg from my last visit, but they show it as being grass-covered rather than heath-like.