I'm not sure what it is, but I guess it's the occasional gear check by a random person. Currently I'm trying to gear some new characters, which of course are running in ilvl 600 quest gear. Sometimes I get kicked before the battle even begins.
I'm probably getting reported with some text like "low pve gear, will make us lose the game"... and then kicked, if this is possible (I don't know).
The funny part is that I'm not doing anything wrong and I'm getting the deserter debuff. This should be fixed.
Or am I doing something wrong? Is Ashran faster for blue PvP gear than random BGs?