A new player is going to be treated badly by veteran players in a group finder regardless of what sort of run is happening. But my biggest issues with new players in dungeons are A. They aren't up front about it and B. They don't listen. If someone takes the time to lay out a strategy for you. Just listen ask questions by all means but don't stand there and argue for 15 minutes.

Also before you call for nerfs to speed runs let me lay a little math on you. In order to achieve a full set of darklight gear not counting accessories, you need about 3650 tomes. So 45 runs of AK or 36 of Castrum/Praetorium. The average speed run takes 20 minutes. So even going as fast you can you will have to run AK for around 14 hours to complete yout darklight set. You will then have to continue to run it around 8 times a week to cap myth tomes. With full party dungeon queues capping out around 20 minutes do you really want systems put in place that would triple the amount of time runs take?