I haven't touched the game in months, I do however follow the game and the current playing climate and there is a definite increase in cheaters, especially in higher ranks.
I frequent the cheater forums as well, people showing off their ranks, bragging how they've played since the start of rank without being banned. Was watching Shroud, he had cheaters in 2 out of 3 games. I know it's a problem in every game but now that ranked is a thing, most of the high ranked games have at least a couple of cheaters in them.