Something needs to be done about tanks ruining the dungeon queue

[Sentinel]

For the third time in 4 hours (on a 30-45min queue, mind you) I've been having tanks that ruin the dungeon experience completely by simply running for the nearest 2-3 chests and then simply leaving, forcing the others to requeue. As a DPS this is game breaking due to the fact that queues are very long to begin with.

Any word from SE of this? Or is the the good ol' "wall of silence" / "working as intended" as usual?

I've never seen this since...well, i'm a tank, I feel for you guys though, that sounds especially toxic behavior, IDK if there is a lack of tanks, anyone who does this, needs to be perm banned.