>> Such controversies have been replicated even in the lower-stakes world of junior play. Sarah Longson, a former British ladies’ champion who runs the Delancey UK Schools’ Chess Challenge, said at least 100 of 2,000 online participants cheated.
I would say 5% is pretty bad. Assuming there is an advantage to cheating, the higher up the ranks you get the greater the likelihood that you will face an undetected cheat.
I think that the big difference between chess and other competitive video games is that in chess you have to do all the steps as the computer says, not just a few of them. In high-level chess one good move is not enough to win a game, you have to consistently find the best move. In a game like Counter-Strike or League of Legends it is pretty easy to just use the cheat a few rounds, or just parts of a round to gain an advantage and then maintain that advantage.
You can do similar things in chess too. Just play your own game until you reach a tricky position where you ask the computer what to do. As long as you don't make massive blunders, you would win more games than you would without a computer. It's a lot harder to get caught for cheating online if you play like that. Playing the exact moves that the computer plays throughout the game is the easiest way to get caught cheating. Also, insert standard statement here about cheating being bad etc.
I would say 5% is pretty bad. Assuming there is an advantage to cheating, the higher up the ranks you get the greater the likelihood that you will face an undetected cheat.