If they're buying as many in-game cosmetics as the average user, and playing for as much time as the average user must to reach a given level, then they never notice.

Have your users put time and money into the game, and require more time and money the higher up the ranked ladder they climb.

Can't make it work? Then use a different business model. Infecting the client with your own agents is not an option. Force companies to deal with these problems in the proper way, like any other security problem: Don't trust the client at all. So please, let the cheaters turn to human-interface cheating methods. That's how I feel about these rootkit anti-cheats. Imagine a prosthetic leg that phoned the insurance company if it detected illegal drugs in your blood. As personal computers are becoming more and more an extension of our bodies and minds, it is essential that they act in our interests and nobody else's. Anti-cheat and DRM hide behind the defense of practicality and cost efficiency, but these products are absolutely evil. With all my heart, I'm rooting for the authors of this approach.

Faceit anti cheat tf2