The old 24/7 ADW pilots - both VVS and LW - were all regularly called a bunch of cheaters, just because they had talent and way too much time to kill.
I was suspected to cheat myself several times and I made the mistake of suspecting someone else myself once (I fell for the Il2 1946 La-5 FM - a totally shot up La-5 just kept on going for minutes and minutes without any sign of limitation due to missing parts and burning engine, well at least I could admit I was wrong - it wasn´t the player, it was just the game, which was cheating ;P ).
Even if you have 100% cheat proof system, which you will never have, there will always be someone hunting witchers.

If you find yourself impressed by virtual stats of a PC game and worry about if someone is better or cheating, you should sit back and think about your life for a while - something went wrong.