Editing this thread to add 2 more suggestions other than Teamspeak. A few suggestions I'd like to suggest; Skywars, Forums and Teamspeak.
Theres almost always a mod on TS to ask question if need be... and due to the fact the TS staff should be limited as it is and there are hardly any newcomers. I mean, the ropes and general punishment guidelines for TS are pretty standard and easy to pick up on. Not to mention I'm on 24/7 basically except when at school or sleeping. And if theres a problem, it probably being handled by a mod that's on. I don't see the point of a forum for TS mods at all tbh.