It's a fine idea but feels like it's maybe past its prime in terms of active maintenance? Like I checked out my old neighborhood in the suburbs of a large US city and the primary road through it (which the area is named after and has a very big visible welcome sign indicating that) was misspelled. I don't have an account and didn't care to learn how to edit it, but I did drop a note flagging the error. Then I browsed some of the other notes and noticed they were all multiple years old. Even Manhattan was littered with months- or years-old notes with only a handful of them marked resolved. Maybe they were just hard edge cases not easily fixed, but it gave the impression of a database that has not been broadly maintained for years.