TL;DR for AI writing warning signs:
- Use of the em-dash (—)
- Parallel sentence structure (e.g. “It’s not just X, it’s Y”)
- Grouping things in threes or at least odd numbers
- Delineating line breaks with emojis
- Odd/unnatural verbiage
- Overuse of filler words (talking like your average LinkedIn post)
- Exaggerated and empty praise
- Weird analogies and similes
- Restating and overclarifying points
TL;DR for signs something was written by a human:
- Including anecdotes
- Written in the first person
- Tangents and nonlinear storytelling
Semicolons are also an indicator. Who the hell uses those?
I use it occasionally, when writing lists with lots of detail, or to separate parts of the sentence where I already used multiple commas.