If you say "I don't see the grounds for banning or regulating porn" but you mean "I disagree with the concept of consumer protection regulation altogether", you're wasting people's time.
Just say the more general thing in the first place so people don't have to bother trying to argue the finer points of the specific case.
Just say the more general thing in the first place so people don't have to bother trying to argue the finer points of the specific case.