Stop crying. You guys must have done something illegal and now acting all innocent. None of my friends outside legion or legionmates got banned as far as I know so far.
I have several accounts for the event too, manually grinded, no problem, none of them got flagged . For those who are banned, if you're innocent, GMs will probably get to it. For those crywolf cheaters, you deserve it.
Good job Ncsoft for finally taking a stand against cheaters.