I pick up the three Undaunted dungeon pledges. I queue (fortunately, I'm a healer so I don't wait hours). I pop into a group...and they're somewhere in-progress on the dungeon, having killed at least one boss. Now I am presented with a conundrum: help them with absolutely no benefit to myself except feeling good, or drop and wait 15 minutes to queue again.
Could we, perhaps, get a fix to this? Perhaps it could work by having you join them in progress, down a boss, and have your pledge progress updated to match theirs? It's exceedingly frustrating all parties, as I'm sure people watch as replacement members add and drop once they realize the dungeon is in progress, and those replacement characters watch their queue times grow and grow just to finish a pledge.