Newb question
 

I see 'RMT' and 'YT' a lot. What does that mean?

rmt is bad. real money transactions. dont buy pixels for cash. YT is yellow text. Its what you see when someone kills some one else in pvp. Avoid CB, MM and CoM

or level in cb mm and com for maximun exp

RMT = real money trading, i.e. buying characters and/or items for real money.
YT = Yellow text. When you die in PVP combat and are level 10+, the server broadcasts it in yellow text stating the victor and the vanquished. To get YT'd essentially means to get killed by another player.