It's not the case in this article, but we're starting to see a lot of comments and blog posts from people who have something worthwhile to contribute, but who aren't confident enough in their English proficiency to post their thoughts without running them through an LLM for cleanup.

IMHO that's a good thing, something that should be encouraged. Counting the em dashes is just an exercise in missing the forest for the trees. Accusing someone of posting AI slop without evidence should be treated no differently here than accusing them of shilling or sock-puppetry. In other words, it should be prohibited by the site guidelines.