I played this game during 1500 hours and I never encountered a cheater once. Plus, cheating in this game is nearly impossible cause of the battle servers iirc. Just a quick reminder, don't accuse someone of using hacks since it's against .ORG rules.
This isn't true. Cheating in this game has been more than possible and fortunately has been progressively dealt with by Relic.
There have been known cheaters even at competitive tournament levels who were found to be using alternate programs. There was also a program application you could buy which was a cheat for the game which to my recollection gave you full map sight.
This was the bigger issue and I believe that this was dealt with and players found to be using it had their accounts banned. I'm not aware of any cheating in this game since just before ESL.