The current dungeon finder is of course a vast improvement over the old LFG channel, but it can always be made better. In response to a forum thread about the dungeon finder's ever becoming performance-based, Zarhym weighed in with some interesting news.
What was more interesting was the idea that Blizzard wants to improve the educational aspect of the service, however. With the current vote kick system, often players who are forced out of a group may have no idea why they failed, especially when they are new to the game.
I recently did a pickup group in which the tank absolutely refused to use CC, despite several pulls that resulted in his near death and running the healer absolutely out of mana each time. I tried to explain, of course, but it ended up a lost cause, and I ultimately decided to leave. It would be nice if there were some way for the game to tell people what they often refuse to hear from other players.