Gotta try harder than that. There's a certain length to their paragraphs as well, you can see from their post history the general shape of their messages that will cue you off that you're probably about to read spam before you've even read the first word. Also abundant LLMisms. Four "not X but Y" and three lists of three in only five sentences. The sheer density of LLMisms is absurd. Not to mention that vague sense of incoherency despite overall being a grammatically correct series of words. There are so many tells it's criminal people aren't catching it.
Or maybe it's not, who knows? It's sometimes hard to tell with comments.
It's just the times we live in, uncertainty is a given, most of the time we don't know. I guess we'll have to make do.