or HIDING the server, that would be better, and as I've already seen it being done by Forest it shouldn't be hard.

@Neo: good functions would be most of the /commands in 1.23+, since beside the unstableness that JJ2 edit is actually perfect. A dedictated server should at least have those. Also, the list of gametypes you are able to host in should be longer:
Battle
CTF
Treasure
Race (Race mode host)
Coop ('Unknown' mode host)
Race (Treasure mode host) - Could possibly show seconds to complete a lap in a chat message
InstaGib (Battle mode host) - Just battle with one health you know the game
Teambattle (old) (CTF mode host) - Killing someone scores your team a point, using CTF bases (if that actually happens in the dedictated server, since I'm sure its just a weird JJ2 bug)
Teambattle (new) (CTF mode host) - No bases, killing just scores your team a point.
TBCTF (CTF mode host) - 1 point for kills, 5 points for scores, as usual
EvilMike's TB edit thingy (CTF mode host) - 1 point for kills, every enemy dies on score
LRS (Battle mode host) - Just like in 1.23+
Enemy killing (Battle mode host) - Level ends when all enemies are killed, killing one scores you one point. Your health is frozen to 5.