I do some m+ once in a while, not very high key highest i have done is a 9++. But sometime when i try to sign up for a key i get whisper ''MM?'' and i respond ''No i play BM'' i get instan declined or when they see that i play BM i get removed from the group. I know that i can fix this problem by myself by changed to MM but i dont like to play that spec at all. In my opinion is a bit overkill that i get removed/declined for a low key just cus i dont play the best spec for my class.
Would be more understandable it if was for a much higher key.