Holding people hostage in a key when the reason people leave is lack of interrupts, not knowing the dungeon mechanics, and poor output, would instantly make me unsub.
I’ll share a secret with y’all. If you don’t want people to leave your keys, quit inviting by ilvl. And more importantly quit doing keys out of your Preformance range.
In all of the season so far I’ve had one leaver and it was his own key. People don’t leave keys often, you literally have to be bricking the key hard for this to happen.