Does Seem to be some favorites on cam sites that are exempt from certain rules for sure. Have Seen the weed & booze thing many times & some even have it listed in there tip menu's, so its not like their hidding the fact.
Sure these things may be legal in certain countries, but they arent in all. Which is why there are rules against them but dont apply to all, as you say, their HIGH earners seem to get away with more, or maybe people arent reporting them? Like some places, maybe you need multiple reports at once for them to even look at it. 1-2 here and therre they probably ignore cause there to busy dealing with other things?
TOS is there for a reason right? Should apply to everyone equally.