Hi, thanks for the comment and the feedback! I've been going it alone here, so I'm not surprised I got a few things wrong.
- The offset is one thing I wasn't aware of, I'll keep that in mind for the future and try to adjust previously-placed nodes over time.
- Crossings are individually checked on-site and recorded in a GPX file, the aerial imagery here is far enough out of date to not represent what's really there.
- Generally, I add curbs later in using the StreetComplete "What's the height of the curb here?" quest. Since it seems to add the curb node automatically in addition to its height, I don't bother creating it in the initial changeset.
- I would love some elaboration on sidewalks and driveways! I wasn't able to find very much information on my own, and its been the part of the process that I'm least comfortable with. More guidance here would be fantastic.

Overall, I'm glad to finally receive some feedback. I've been trying my best to help improve local coverage, but with no-one checking my work and generally poor health it's been tough. I'd be happy to work with you as best I can going forward :)