Earlier quoted context omitted.
Every item on OSM (node, way, relation) is versioned and has a history. If you can link us to your changes I’m happy to try to help find out why your change was reverted. Usually that’s only the case for blatant errors, copying from proprietary maps (ehm, Google Maps) or vandalism. We’re trying to be a friendly bunch, and I’d like to get you back as an editor.
I don’t want to ask here (don’t want to mix up my identities), where should I actually ask? In what forum
Sometimes one can find specific local communities here, too: https://openstreetmap.community/