This is only my own experience, but I've been paying since 1.0 and I can't recall a single time when it was necessary to go out of my way to report someone for cheating. I don't personally find it to be frequent or noticeable, and it certainly hasn't affected me directly that I know of. Are other players really encountering it so often?

As for anti-cheat, I don't even like mods let alone cheats, but I would hate to have it implemented. In my experience anti-cheat can cause launching and performance problems even for those of us who just play the game as intended.