Hi. You raise several interesting issues here.
1. Don't add GPX traces... Why not? Does that not prove that someone has used that path? Do you think that, if a path is unable only half a year, it should not be on the map? Should we remove all paths on Hochschwab because they are not unable when the snow falls?
2. "There are no paths... You can walk everywhere". This seems to be a contradiction. If a way is walkable, then it is a path. How else do you define a path? How do you calculate the distance or time across a walkable terrain, if there is no path? How do you mark passages that are safe to walk on, vs getting seriously injured or worse?