After a thorough investigation, IMCGames unleashed the power of the Ban Hammer upon users that exploited bugs, botted, illegal programs, game modification, and more. Perma bans has been sent out on over 1,000 accounts! I'm not sure if the users just get banned on TOS or their whole Nexon account is banned and done for, if it is, then they just screwed over their other Nexon games in their library.

You can check out the really long list here.

Source: Link and Link