New multiplayer

Friendly greetings. Got one simple question. What do you guys think of creating an own multiplayer game? With servers created and hosted by the players, hosts may turn on and off modding, can create own server maps and scripts like RPG gamemode for roleplay gaming. Own events coding and stuff like that. Wouldn't it be awesome? Yes, it's not easy to do that, but what do you think of that? People could get banned, but only by the host of the server, and the host controls everything.