People not entering into the Random Dungeon they queued for.
Since staff started penalizing ninja looting in dungeons, I strongly suggest to also penalize people that queue for RDF, get called but don't step in.
They force a vote kick, which results in the loss of RDF bonus for that run, so everyone should vote kick another member and then the remaining 3 can leave without getting deserter.
Just got the case 3 times in a row, and some kid started making fun of it.
By the use of timestamps in chat we can provide message stories of how long a player has been slacking before teleporting in.