This will inevitably get abused to shut down dissent. When there's something people vehemently disagree with, detractors come out of the woodwork to nitpick every single flaw. Find one inconsistency in a blog post about Gaza/ICE/covid? Well all you need to do is also find a LLM tell, like "it's not x, it's y", or an out of place emoji and you can invoke the "misinformation generated by a narrative storyteller spambot" excuse. It's like the fishing expedition for Lisa Cook, but for HN posts.