You're right, this isn't as dangerous as described. Attendees in furry costumes can just walk out the moment someone tries to make fun of them.
For real, they have no life so they fuck with the lives around them.
Troll logic, these people operate by. It's petty tbh
There's always at least one furry who will gladly yap at them for as long as possible just for the chance to get attention online, even if it's negative attention.
unfortunately, i suspect a lot of people don't realize that "just leave and deny them the reaction" is an option
lots of folks probably stick around trying to fight back or make a statement, only to feed right into the drama these kind of miserable no-lifes want