I don't think a 5 minute penalty is really needed just a better queue system that stops trying to drag people in if they withdraw a couple of times. It's kind of annoying for a queue to pop and to press commence like 20 times only for it to cancel a second later because a person clicked withdraw. I get that people look for in progress runs at times i do it too since you get some stuff like 3/6 Prae and 1/3 WP that are really short and simple for a large gain. But i won't requeue a dungeon that keeps popping that i don't even want. It's just going to keep forcing that one on you anyway so you might as well stop trying for that one for a while.

Lots of people will just sit there and withdraw over and over so i think if they refuse a couple of times they should just be removed from that queue and somebody else should be pulled in. Also don't outright cancel so we have to keep clicking over and over. Just hold everyone there and get one new person.