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 their power to make you "raged." These attempts, obviously, fail miserably. Other times, you'll find a few new players there being ridiculed by the "pros" for starting out. Let me once again demonstrate.
-After 1 hour of trying to get into Dread, you finally make it!-
=/JµNDøN/=: Elitist Union.
=/JµNDøN/=: EZ. Pro'd 100-0
ÇrâçkëR: lawl junden is my gawd.
=/JµNDøN/=: New GK Technology.
After being beaten through "GK," or Grip-Kick, I bid JuNDoN a good game.
SDF: GG Jundon, man you're good.
=/JµNDøN/=: LOL, SO RAGED.
=/JµNDøN/=: AHAHH it's so obvious.
HERO: LOL RAGE
Penismaster23432: lo0l raged SDF.
SDF: Could someone please explain what rag--
DreadxSouly: LoL SDF, you're no match for me kid.
SDF: Damn, you beat me.
DreadxSouly: Damn right kid.
SDF: Yes master.
DreadxSouly: Good pet.
DreadxSouly: OO, admin. Bye SDF.
SDF was banned from Dread.
That just about sums it up. Don't play JK:SP unless you love games with cheesy storylines and (not-so)happy endings. Don't play JK:MP unless you want to be banned by trigger happy admins, or being ridiculed for being a "rager" or a crybaby and told to sit all the time. Especially stay away from the Euro servers. Don't worry, if you're American/Canadian/Etc and you get made fun of from a Euro, they're just jealous of you. =]