I believe that there should be clarification on this being "detectable" and "ban-able". Hacks like this have been known to be detected, either by anti-cheat, and as well by the other players. If you are shooting through walls or being obvious in some other way, then they will know what you are up to. THAT is the reason this is ban-able.
So is this detected? Not sure if 'by the game itself', but if you act like an ass in-game, then they will know and they will report you.