Since blind firing is allowed, i doubt you can get brought into a sin for meta game. If you do, staff report and warn appeal. Colt literally told you, we can. I always shoot into corners when entering places i feel i would hide if i was a cloaker. Haven't shot anyone yet doing this but the fact that i can do it, means anyone else can. It's not hard. Habit i had to learn from playing on a cc since they can't have thermals. It really isn't a huge deal. Stay on your toes or die humbly bested by a cloaker.
With 096 your argument is valid. Not with cloakers.