I think a VR MMO would work well and fix a lot of social problems, most people would use voice chat since is hard to write in VR and in a town it would be full of people just talking to each other instead of the barren desert that is any MMO today were everyone is just talking in private chats or AFK.
Also allowing UGC content would be dangerous but I think it would be cool, you could have a furry and anime girl and joe with his regular avatar all together doing dungeons, all uploaded by them or made in an in-game editor.