Just on HN alone I think I've seen roughly 3948538902748750897520938 mentions of emdashes when others were complaining about slop in the past 2 months. It might as well be the unofficial slop logo. Folks are treating it like a dead giveaway.
I feel like a school friend of mine has been taken from me.
It’s just people who don’t read books outing themselves. Ignore.
Indeed: https://news.ycombinator.com/item?id=47921359
and the comments above it
The real dead giveaway is that the writing is bad.