I personally hate smoking pot but I don't really have a problem with kids getting high, especially in the offseason. Pot is not bad for you and it doesn't generally make people violent. Who cares? Just don't be an idiot and actually manage to get busted for smoking in your dorm room.
Getting in trouble in a CU dorm requires either terrible luck or extreme stupidity. The overwhelming majority of the time it is the latter. When I lived in Chey-ho it was an absolute joke... the RAs didn't care unless you literally gave them no choice but to write you up.
Not my experience in Kitt. The RA's patrolled our floor every 30 minutes, and they would say things like 'we smelled beer outside your room' even when we weren't drinking. It gave them an excuse to come in and look around. I was written up 5 times, got out of 4 of them, and every room on my floor was written up at least once.