Bukkit

1.Currently a data file is created for every user that joins the server, regardless if they have played skywars or not. To increase performance it would be nice to only create data files when the player enters skywars.

2. A cleanup option would be nice too, if a player hasn't logged into the server for X days, remove skywars player data.

Shouldn't really affect performance, the player files will not be cached unless the players are actually online. I suppose it might be inconvenient to have all those tiny files if you're running on a ram-disk or take frequent non-incremental backups.