Don't even attempt. First, you have the RPG Servers. One word: Gay. Without ForceMod, an RPG modification, RPGs will suck balls even harder than without it. Typically an RPG server is made up of about 5 admins, 3 noobs, and 5 semi experienced players hosted from some kid's mom's house in Kansas, so it's most likely a lagfest. You have people shouting out shit randomly, people attacking you and when you retaliate, "LAMMER LOL /instaban!" I will demonstrate the typical time spent on an RPG server:
SDF: Hey guys!
Admin: Fuck you kid, you're a dick.
SDF: LOL, INTERNET.
Person: hy can u are pee with me i want ot cayber cex pleaz
Admin: lohl its r p server my mom said so , sex or gtfo.
SDF: *Admins and Noobs all attack SDF at once. SDF retaliates and beats them all. He is immediately overwhelmed with claims of hacks and lames. Next? Instaban.
The other main server that will piss you off are the JA+ ones.
Let's take the server Dread for example. Typically you won't even be able to get on the server it's so full, and if you manage to get in you regret it. There are genuine jackasses there that will do anything in...