It takes time to make a plugin like that. -> If they have the plugin they have to add much worlds -> Then they have to upgrade the server -> if they don't do that the servers will lagg. (I know what ur trying to say but if there are 2 players in each world maybe 3/4 players then it will lagg :C And we all know that the servers are laggy at this moment. (My english is bad)i sure you don't get a lag if add plugin "private game".