If they leave the threads, then they prove that there might be something to it, if they delete the threads, then they prove that something might be to it as well. You have to leave them a chance here.
BTW: I can think of one million threads that WT fans are opening up on WGs forums that are all inflammatory and uncivilized, born out of just this single speculation. If I were an Admin at WG then I'd delete any such thread as well.
Perhaps the Server over at War Thunder just died?