@demifiend, then don't reply to their comment with a comment of your own. Why don't you quote it in your blog or email them instead?

I can't and won't speak for anybody else, but if I wanted to provide random strangers with a free soapbox I wouldn't bother with a static blog. I'd just fire up a new Fediverse instance.

IMO, there's no need for comments. If people can't either send you an email or quote your blog with a link in their own blog, then they probably don't have much of value to say.