exactly, nexon has it set up already to auto ban when you seem to be doing so "great" Basically and real noob just joining would not be very familar with the game, therefore usually getting owned by the higher ranks and specs etc. So when a new account is created (supppsedly noob) and you automatically jump your kdr up to 2.00 or get a 50 combo in fireteam etc, it will detect somethings isnt right and auto ban you.
I've gotten to where now I telekill for a few kills, then a few legit kills, then tele agaqin, etc. I do this in fireteam and in elimination. It's a little more discreet this way since you're not just slaughtering the whole team making them leave and report.