It's so disappointing that this has become a meme. Lot's of people write with em-dashes. If you want to criticize the _writing_, then do so.
Writing is repetitive, making lots of general false claims out of personal feelings etc... I guess this is enough to criticize a chatbot output.
Yep. Love em dashes. It's a stupid tell.
A better tell IMO is an unnatural huge amount of editorialized h2s / h3s. Often they are overly lofty.