You can be happy when you receive these kind of messages. It's like a gift, no? The message you copy pasted here is the exact evidence that chess.com is protecting the players. And what should chess.com do to catch them earlier? Chess.com should look into the brains of persons and should not let people with cheater intentions to create accounts, right? By the way, the discussion of cheating is not allowed in general forums, so go to the club Cheating Forum, where you can discuss this problem. And don't complain but share your ideas for chess.com to protect the players from cheaters....
"We have detected that one or more of your recent opponents has violated our Fair Play Policy. As compensation for potentially unfair rating losses, we adjusted your following ratings:..."