I’ve tried using it over the years but I never liked it because there was no information. So last night I looked at my local city and there is almost no information at all. I spent a few hours last night adding buildings and restaurants and removing incorrect items. It was actually kind of fun and therapeutic and I plan to do more of it tonight. My girlfriend thinks it’s dumb and I’m wasting my time because Google maps and Apple maps and Bing maps exists but she just doesn’t understand open source.
Edit: Apologies, I just realized this question is not Linux specific.
StreetComplete is perhaps the easiest and maybe best way to contribute as it is on rails. Constraining input for newer users is great. If your area is saturated with information I look at that as a win for the open community as a whole, but I understand the desire to add more.
There is SCEE which has advanced features and more editing options but I haven’t explored it yet. I am just happy something like StreetComplete exists to allow me to contribute in a meaningful way without adding garbage data.