Got some knowledge elsewhere in the meantime. It's about a new way of cheatdetecion, with the API function. But it seems a lot of programs do use that function, so it's in a testing phase. What i know about BF is that there was a specific mistake/bug so a lot of people got kicked (should be solved now). However in other cases it's almost for sure it's cheating (sof2: 131124)If you happen to get kicked for that api function and you aren't running cheats, you are strongly adviced to contact evenbalance via the ticket support system!
To be honest im a bit disappointed that i haven't seen a good answer here within 24 hours.