The map in event time would be set on the 'event blacklist' flag, what means all players with name from the event black list will be kicked on the world map and not allowed to enter the map till flag will be turned off after the event.
Such things will block people who like to destroy events and list will contain:
- players attacking friendlies (except incidents),
- players blowing up other,
- players stealing others' stuff (from inventory),
- players disassembling items,
- players trying only to take out equipment,
- and other who will try to destroy the event by disturbing others having fun.
All these things will be only 'counted' on events and places from where all players are gathering to be teleported or transported to an event.
Also it could be even automatic by algorithms, but it could be too restricted and artificial.