So I suggested this on Zam, and I suggest it here as well. There seems to be a strong aversion to Vote to kick. The majority of the time it would be used as intended, but there would always be the potential for abuse.
How about a Duty Finder Black List? Since the current black list only works for people on your server and we can already control if we group with them or not, it would be nice to have a list of people who it will prevent you from queue'ing with while using Duty Finder.
EG1:
Tank joins instance for CM and 'AFKs'. Hes there, he moves around to avoid being kicked, but doesnt help.
You add that player to DF blist, and they can no longer be added to a DF match up with you. Enough people at that person to blist, and they can suddenly no longer use DF since it wont let them queue with anyone.
It would have to work while dead, for times when you get that random TITAN HM troll who leroys Titan non stop before you can buff or do anything.