Au contraire! With a three character month, period separation isn’t needed, and the date is shorter. (Admittedly there’s likely to be a language translation issue, depending on audience.)

320k people voted.

1000 is quite the hyperbole.

If you’re asking about more imagery coverage, Mapillary has a lot. The wiki has a list of street-level imagery articles.

OpenStreetMap is more about the map database, so any imagery association tends to be loose, and is more for use as a useable source for ground truth.

Have you checked out Every Door?

StreetComplete is intended for local, on-the-ground surveying only. Editing remotely is not supported, and will result in problems.

(I’m not sure whether you’re editing remotely vs reminiscing during in-person visits, phrasing is slightly ambiguous.)