In the last 6 months we have lost ToneStone, Lemon, Hongnam, Mike Croley and possibly Kalamansi (or Lemon again). Rather a lot I would say!
IMO ToneStone and Mike Croley were entirely justified as they were offensive and abusive. The others were only argumentitive I thought. Having said all that, it is the perfect right of the people who run this site to choose who they eject.