Respectfully, “fundamentally associated” is an overstatement in this context. Are you saying celebrities reputations are inextricably linked to every word of every reply to their social media posts until someone deletes or blocks them? PR doesn’t work like that… Minimally reasonable people will not judge you based on vulgarity of replies of your posts. If they do, they’re probably dumb enough that their opinion doesn’t matter. On a permission-less protocol, you’re not responsible for what others say in your replies. Although it’s your right to find or create a client that allows to filter and police how you see fit.