Zero you really need to put a limit on the number of admins in the server. Or at least make some kind of requirement to have admin. I join the server and BAM like 10 people with the ibis.a tag. Also i read over the admin abuse board, and its pathetic how people use no clip and try to justify themselves that they didnt know they had the bomb?
Admin is given to you to help make the server better for everyone and to get rid of hackers, spammers, etc. It is not there for your amusement to fly around the map.
Its like summer of 08 all over again