This is almost as good as the classic HN "Putnam" comment: https://news.ycombinator.com/item?id=35079

(Hint: No, he's not replying with AI. Two hyphens are not an em dash. Even then there's no hint of it being an AI response. Also the person is actually the CEO of Dropbox, the very person this thread is all about. You only have to click his username to see his posting history to see he's not an AI bot posting endlessly, his last posts (prior to today) were in 2024.)

Not every use of the em dash is Ai. I’ve long used it and always am accused of using Ai in responses — though I never do.

Seems minorly AI ("Fair criticism.", emdash), but as someone who works adjacent to this space, the rest reads like something I'd write.