100%, can we not normalize this kind of thing in multiplayer games played by humans?
My friends and I have quit a number of multiplayer computer games when they've become infested with cheaters and developers couldn't or wouldn't keep up with the arms race of banning them. This is really not that different from someone writing and using an aimbot in a public lobby for a shooter.
If you're going to be writing and testing cheats or AI or bots do it in single player games or private multiplayer lobbies so normal players aren't affected.