Well, the reason why people put user limits on their servers is mainly due to bandwidth reasons and mysql. I'm sure Sadie would love to increase the user limits, (I know, we've talked about trying to make this happen... but eqemu still has some limits when it comes to booting zones remotely)... you'll just have to try and login when there is an open slot, like everyone else
Sorry for answering for you, Sadie.. hehe.