Some people have been abusing the LFD tool by queuing up with a friend who is a hybrid class and then having the friend drop group right away. The person queuing up as dps then gets a free ride into an instant dungeon which makes the queues even that much worse for those who don't abuse the system in this way. Another trick is queuing up with 3 people and having your hybrid queue as a tank/healer; once you get into the dungeon you votekick the other two people and requeue as triple dps and get the first tank/healer available. Obviously these tricks are underhanded and nasty but nonethless people did it. Blizzard came up with some wonderful solutions to these problems just yesterday:
The first one is great as I have had problems a few times with people going afk outside the zone and the group being unable to remove them for quite some time. Obviously if someone is in the zone and refusing to play you still have issues but this is a nice change.
The second is simply addressing the exploit I talked about earlier. It does so pretty decisively so I approve very much. It seems remotely possible that someone could be spited out like this but they could have been kicked the normal way anyway so it hardly matters.
If three or more players group queue with each other it will require an additional vote for them to kick anyone they did not group queue with.
The third is great. It was always a problem that a group of three friends could walk in and kick out everybody else so requiring a fourth person to agree with them is a great change. I suppose they might end up trying to bribe or convince one of the random folks to go along with some sort of dastardly plan but that seems like a poor gamble. The ability of 3 dpsers to abuse the system right now is tremendous and this at least gives the people they end up with a way to deal with the situation.
I am honestly not sure what the last two are intended to accomplish. If a group of 4 queues up they already get an instant queue since they simply must supply a tank or healer from their own group so kicking people is unlikely to be exploitable. They can be annoying for no reason but generally there is a need to control behaviour that is beneficial to the jerk but controlling people just being jerks randomly is mostly not necessary and extremely hard to do in any case. The final one is puzzling as I don't know why they want it to be easy to remove your friends from the group exactly. I don't have a problem with it but I can't figure out what it is trying to solve.
All told, thumbs up. There were some really unpleasant exploits out there that mostly affected the solo dpsers trying to get a dungeon done and these close them up pretty thoroughly. People can still abuse the dungeon finder to be jackasses but they can't do so profitably anymore, which is the key.