I remember when I saw it the "list with things prefixed with emojis" the first time, and started doing it myself thinking it was a great way to break down things visually. Looking back at the things I wrote then people would definitely assume it's LLM.

I sometimes see posts on LinkedIn that look LLM generated but also makes me think it's someone who has seen a post, thinking it's a great way to convey a point and tries to adapt the style, without realizing it's a smell.