I don't pay attention to em dashes, they're overused as a pithy saying for sure
The actually useful tips are here: https://en.wikipedia.org/wiki/Wikipedia:Signs_of_AI_writing
The actually useful tips are here: https://en.wikipedia.org/wiki/Wikipedia:Signs_of_AI_writing
Good writing uses novel combinations of tools (vocabulary, rhetoric, metaphor) to communicate novel ideas. Bad writing is a cargo cult of those tools.