But anti-cheat was first developed in a time where server browsers were the norm. Punkbuster was developed back in 2000 (independently of Valve) for HL1/CS, whi

But anti-cheat was first developed in a time where server browsers were the norm. Punkbuster was developed back in 2000 (independently of Valve) for HL1/CS, which had no matchmaking system. So you're just plain wrong about the motivation.