I have a recommendation for all you server operators/admins.
Do not allow lvl 0 players to !listplayers
That way they cannot see who is an admin. It's easier to join and
BAN! if you spec someone aimbotting, cause they won't know who's who.
Also, scan your games.log for the url that all operators know all too well and create bans based on that. I've been upgrading
all aimbot bans to subnet bans (after checking that noone else is coming from that subnet

) Only Class C so far >:]
edit: an immediate and permanent subnet ban will give pause to anyone who actually likes your server. Additionally, the more servers that do a subnet ban, the more aimbots will have to think about their dwindling choices for servers.