I love the project idea, unfortunately I had bad experiences with the community. I had lots of fun walking my neighbourhood to perform quests in the app until like one or two other users started reverting my edits. I checked their comments and it was some weird pedantic arguments, like I shouldn't mark a street as not walkable because there is no official sign that prohibits walking; the fact that it's basically a highway with no sidewalk would not matter.
I ended up digging through the OSM wiki for definitions and rules to argue my case but in the end it felt very much like people on a power trip insistent on getting their way. It has ruined the fun in StreetComplete for me and I haven't participated since.
Just tag POI, they get stale so quickly. Everybody wants to tag the roads, but the real gap in many places is stale POI, or missing tags like opening hours. You'll get much less attention from these gatekeepers there too
Aren't there many places where a highway with no sidewalk is the only walkable option? So if someone saw your not-walkable, they might think not walkable at all.
Seems like you guys had two different perspectives, both arguably right. Maybe it needs to be split into technically-walkable and comfortably-walkable layers.
It’s tricky and maybe locale specific. A lot of roads near me have no pavement. You have to anticipate pedestrians, cyclists and horses on the road. Not at the same frequency as motor vehicles but not completely out of the ordinary.
I actually feel better about making edits if I know people may revert them. I don't have the time or interest to dig in deeply to what exactly they want, so I normally wouldn't contribute. But if I know people double check and fix mistakes, I'm more likely to try and be helpful with the app.
If you were using StreetComplete I don't think you would have run into that. StreetComplete is very beginner friendly, and I don't think you can use it to mark a road as prohibiting pedestrians (which, as you discovered, is easy to get wrong if you don't understand what you're doing). You can use StreetComplete to mark whether there's a sidewalk or not, but I don't think anyone would object to you marking roads without sidewalks as not having a sidewalk.
It's not pedantic, it's just the way it is. For OSM to be valuable it needs to be consistent. There are many tags available but the "you can't walk here" tag is about whether you have a right to walk there. There are many highways you wouldn't want to walk on, but there are other tags to indicate that, like speed limit and presence of footpaths etc.
This has been the most controversial quest in StreetComplete for a while. Following several discussions about it, I have now removed it for the upcoming version (i.e. v64.0).