No singular red flag means much in isolation, but it’s a signal that when combined with others can give a pretty good prediction.
I get the anxiety about authenticity, but sometimes the witch-hunt feels more automaton-like than the tools themselves. For what it's worth, I've written publicly about my process ––how I use AI as scaffolding, not ghostwriting–– in my standing note on AI use.
The discomfort around augmented intelligence is fascinating + telling. I sometimes wonder if the same people browse HN on typewriters or pray for the next X-class solar flare so we can all return to rock carving.