Annoying 20 min queues

I've had games where I was AFK for literally a minute or 2 max, maybe in the start, or during the game. Sometimes you need to grab a quick drink, or use the restroom. You know?

I finish the game, win or loss. What happens? 5 low priority queues.
Fucking hell.

Oh and this also happens with dc's. But even if I reconnect after, (within 5 mins or less) I still get the low priority queue.

What's causing this? Is it an automated bot? Or when people mass report you?
Anyone else experiencing this?

 

LeaveBuster. It sucks, like all unmonitored player correctional programs out there. By unmonitored, I mean they don't listen when we tell them it's shit.

 

Have you been punished like that, too?
When it wasn't necessary, especially?