Since I can't seem to start a thread due to my character level (which is ridiculous), I guess i'll point it out in here - the LFG tool needs work. The queues for DPS are ridiculous due to the 4-person make up (having 1 tank and 1 healer for 2 dps as opposed to 1 tank and 1 healer for 3 dps, for example). I've had the tool drop me into dungeons without a full party, with the timer going and waiting for (usually) a tank or a healer.

I know Yoshi has stated before the solution is for 'more people to play tanks and healers', but that's not how the distribution goes. There is also no penalty for dropping groups, which means that a tank or a healer with a (presumably) shorter queue can drop for any reason (not getting the loot they want for example), and requeue.