I feel like this would push people to break the rules instead of paying the 4 bonds for the removal.
I see where you are coming from but who's deliberately going to get their high level GIM banned just to help the people that they are screwing over initially anyway? The training of a GIM is x6 XP which takes quite a while to train up. Anybody who has made it anywhere that but doesn't want to be in the group would be more willing to pay the bonds then sacrificing all their hard work and effort.