"John Henry was a Steel-driving Man" is the story of how a steam powered machine defeated a man. Likewise with chess. Until the computer geeks produce a "mathematical proof" of the "perfect" chess game, all programs are just novelties.
I am sure some players are using computers to win games on chess.com, but that is not just unethical and wrong, it is stupid. If you rely on a computer, you will never know your real strength.
How a computer error helped Deep Blue beat humanity's best chess player
Chess legend Garry Kasparov beat IBM computer Deep Blue four games to two in a match organized in 1996. A year later, he was man versus the machine again, accepting another challenge from the team behind the supercomputer. This second time around, IBM's competitor came out on top, beating Kasparov three-and-a-half games to two-and-a-half. After the loss Kasparov questioned whether Deep Blue's team had cheated in order to beat him, but in a fascinating new short documentary by FiveThirtyEight andESPN, it's shown that the momentous victory — and the notorious 44th move that led to it — was actually the result of a computer error.
Also, a link to a chapter from Nate Silver's book, “The Signal and the Noise: Why So Many Predictions Fail — but Some Don’t”, which was the inspiration for the documentary.