I have a plain 1.5 server, no mods, that can handle about 30-35 people probably. I'll post the info in just a minute. It has been a thing just for me and a few friends, but it has kinda died down some, so hey, why not.
Thing is, I don't really have any rules or regulations laid out, so please don't abuse it!
EDIT:
Okay, quote this for a plain 1.5 vanilla minecraft server. There isn't really any community here, so don't expect lots of people!
QUOTE FOR SERVER NAME
QUOTE FOR SERVER NAME
If there did turn out to be a decent amount of interest, we could definitely make some rules and appoint some moderators, ones that wouldn't abuse their power preferably.