Randomly banned?

I just got a random ban for winning a game of breakout. No suicides, no team kills, just randomly banned. Why?

Checking your matchmaking history, it looks like you’ve quit a number of games, which probably triggered the ban:

Arena
11/12/2015 - 2 DNF
10/30/2015 - 1 DNF

Warzone
11/9/2015 - 1 DNF
11/8/2015 - 1 DNF
11/5/2015 - 1 DNF
11/4/2015 - 1 DNF
11/3/2015 - 3 DNF
11/2/2015 - 1 DNF
11/1/2015 - 4 DNF
10/31/2015 - 3 DNF
10/30/2015 - 2 DNF
10/29/2015 - 2 DNF

> 2533274862181038;2:
> Checking your matchmaking history, it looks like you’ve quit a number of games, which probably triggered the ban:
>
> Arena
> 11/12/2015 - 2 DNF
> 10/30/2015 - 1 DNF
>
> Warzone
> 11/9/2015 - 1 DNF
> 11/8/2015 - 1 DNF
> 11/5/2015 - 1 DNF
> 11/4/2015 - 1 DNF
> 11/3/2015 - 3 DNF
> 11/2/2015 - 1 DNF
> 11/1/2015 - 4 DNF
> 10/31/2015 - 3 DNF
> 10/30/2015 - 2 DNF
> 10/29/2015 - 2 DNF

LOL.