alt Hacker NewsI still think it has strong normative value. Maybe at some point when norms have become firmly established these comments will be pointless and spammy but I don't think we're anywhere close to that point yet.
A lot of blogging is essentially self-expression and that stuff won't be taken over by LLMs (it defeats the whole point). Other blogging is done with some kind of sales/promotional/brand purpose and the extent to which LLMs will dominate this will depend on how we as a society react to it (see the AI art battles) since if people react negatively to it it becomes counterproductive.
Perhaps it would be better to have comments that praise apparently human-written text?
I understand where you're coming from. I've been posting complaints about LLM-written articles almost as long as I've been here. (My analysis is definitely more complex than a search for blacklisted Unicode characters or words.)
But I've let off on that, partly because I agree the guideline is meant to encompass that kind of criticism (same with my comments about initial page content not rendering with JavaScript, honestly) but largely because it just seems futile. It's better material for a blog post than HN comments (and would be less repetitive).