AI gave LinkedIn a house style. Here are the patterns that now read as AI in 2026, and the uncomfortable truth about where they actually came from.

Does LinkedIn penalize AI content? Not exactly. It demotes generic posts, not AI. We scored 46,000 top posts and 97% read as human. Here is what happens.

The famous AI words to avoid (delve, tapestry) are already dead on LinkedIn. We checked 129,000 posts. The real tells moved from vocabulary to structure.

"Here's how" is LinkedIn's most common AI handoff. It went from under 3% of posts to over 16% with ChatGPT. Why it reads as AI, and how to vary it.

Is the em dash a sign of AI on LinkedIn? Yes. Em-dash use jumped from under 2% of posts to over 15% with ChatGPT. The data, and what to use instead.