Reign of the Undead - Revolution

HeY, i had this curiosity since forever. 
What are those random nicknames i see under player list from main CODUO menu?
And why so wierd names?

Tnx, pECo

Hi PEco! I'm guessing it has to do with player level/rank/activity? I wouldn't know otherwise. :-)

These are "bots" who are on the Rotu server

Yea, bots to attract more players