Too many qq and alt-tabbers in solo queue.
I would think this is easily addressed by just copying a match join system from other games. You know, “if you do not press I AM READY in a minute you get kicked out of queue”. Not like the unique system gw2 has – "Oh you did not press anything to enter the match? Well it is probably because you are saving your mouse clicks for “awesome” reward opening and deleting, so we will just put you in match anyway".
Also if they remove skyham from soloq I bet number of afk players will severely decrease.
This ^^.
Also, I do not even play skyhammer. If the queue pops for that, I just log and do something else.