Call me proposing a slippery slope but what if people want to see the snuff porn of a character?
What if someone just screams they want Avengers 200 for Carol and consider it weirdly hot or something? Do I get to at least troll them? No?
Every fandom has different air around them, while each claim may have fundamentally the same inherent "value", people react different towards it.
Asking for freedom of expression is reasonable, the immunity from criticism and slander however is not.
Keep in mind I don't respresent anyone but myself, so the criticism is mine and mine alone. If their statement stands upon themselves and don't need validation nor approval, my disagreement towards it shouldn't be considered silencing them. You may want to call it in vain but that's the point of my expression.