I have a problem with trolls joining my pages and events (which have hundreds to thousands of real people) then trolling crude remarks. It seems that the only thing I can do is "report" them to Facebook, for what little that does. Or I can choose to "block" their comments so that when they post, I don't see their comments (but others in the group can), but in managing these pages & events, it would be irresponsible for me just to look the other way here when they post harassing other members. What I'd like to do is to #1 boot them from the page / event and #2 prevent them from joining in the future, all this IN ADDITION to reporting them to FB. On this, I'd like some advice on what to do. Thanks.