I tried it when someone posted about it a couple of weeks ago. It is fun, my son and I go for walks and I include him in the tasks. Unfortunately, we get a lot of road surface questions which are a bit boring.
The road surfaces actually help a ton for apps that come up with bicycle routes as well as those on wheelchairs. However of you'd prefer less of them, you can make jt a lower priority in the settings.
You can also add "little" objects like benches, recycling containers or trees in your near environment to the map that come with their own sets of questions
If I disable the 3 types of quest I get in my area (road surface, lanes, power pole type) then I get basically no quests, period
I've taken to adding buildings that I'm surprised they didn't already have on OSM and then filling in the quests that auto-populate with that, but its meh