Maybe they should just separate the queues for "Join in Progress" and regular searching? I know how terrible it can be for DPS classes to get into a group and if the tank bails they're pretty much boned seeing as most tanks are not going to queue up with "Join in Progress". Knowing that, there was one specific day where all I did was queue up with "Join in Progress" selected but I had to keep withdrawing because I wasn't getting put into groups that were already in progress. While I totally understand that there are people abusing the DF, I was actually trying to help people and while no one would've known it was me queuing and withdrawing repeatedly, I'm sure there were a lot of people sitting in front of their monitors/TVs that weren't happy.