I just like anything that lets me have asides but brackets () work just as well

Honestly to me it’s usually the excessive emoji use.

Em dashes in internet prose are more redundant than not, imo.

However, the AI clues I use are beyond just the presence of em-dashes, AI seems to use them in a predictable style (in the final part of their answer). They also use emojis section headers and bolding excessively.