Hey man, I understand this solution may look good on the outside, but we truly do not need such a thing because it's not going to be taken care of properly. Not only is it unfair to those who suddenly get targeted for being blocked by a group of people for 'fun' but it's totally not cool to the mods who have spent so long working for FH and doing such an amazing job.
I'm not entirely sure what brought you to this conclusion, but please listen to the input of both your team (team isn't a single person in charge) and the people of FH who aren't convinced this method is the best. There's plenty of other pointers and reasons this could not be a very sufficient way of caring for the community. I'm most certainly sure that almost every game out there like this have mods for this very reason because we need them. Perhaps you could do a.... report system? Where people type into their inbox thing the exact reason they want this person banned and then it's up to your TEAM to decide the fate of a character instead of suddenly banning people who have no say in their argument. Even that seems to be a stretch, honestly, because the mods have done an outstanding job caring for the community in FH and other's have helped stop any harassment or cussing when they aren't around. This isn't something you can willly nilly set in, it's got to be cared for and agreed with by your peers.
Whether or not you listen to your community, it'd be wise to chat with your team because this is not a very good idea.
Thanks for listening to our input, and if you do decide to put this through, please make it fair. No one deserves to suddenly be kicked from a game they love and cherish over some stupid miscommunication or 'prank.' I've been on this game for years and have never had a problem with the community.