Do you think sell groups are hurting end game community?

[Anneliese]

Well your logic is grossly and horribly flawed, but lets roll with it. You are not the boss (you are not even at supervisory level here) of the instance to which they have "applied" for. So suck it up buttercup!

Actually, if it's his PF group or raid group and he is the leader, he has every right to kick someone from it, without obligation to give a reason for it.

Don't believe me? Try reporting someone for kicking you from their static or pre-formed party and tell us how that goes.