I go up against people who openly admit that they are boosting someone very often, and since I am not very good at the game, I struggle to deal with them. Why do so many people do this, and how can I deal with them?

first off let me just say I've been waiting days for this guy to get banned and he's STILL not banned. I've been checking his tracker daily just to check if he's still playing matches. And for whatever reason this guy with a 57% headshot ra...