If you don't have a specific game, then "super strong players that may be cheating" just comes off as "I'm a beginner and forks both surprise and impress me" or "I'm mad that my opponent notices forks so quickly"
Computer play is strong beyond simple tactics. I hope you're talking about a game or games where your opponent displayed incredibly strong play, not something like punishing a simple mistake.

Disappointing site: chess.com
I tried to play live chess. my experience has been disappointing. everybody I play with seems to be either:
1. lying about there ratings (i.e. their true ratings are much higher than what they show)
2. using computer chess programs. or themselves are really a computer program.
I think the site allows it. I think this is immoral