Yes, boosting is a form of cheating. I try to discourage them from ruining my gaming experience. I had a match going 20 kills, zero deaths, and there were two guys boosting . . . one called in a nuke and completely ruined my legit nuke for that match! If they want to boost, they can get a full group of people who are OK with boosting, get in a lobby together that is still ranked and boost together that way, thath's their own thing, but doing it in a public lobby ruins every match they enter for the other 6-10 players.