I agree with this. I don't know about a permanent ban, but at least a penalty. A couple weeks ago we made a big deal about, "No AI generated comments," being added to the guidelines.
A browser extension with a couple regexps will do it. Or with a tiny model for sentiment analysis, if you want to be fancy. Feel free to ask your AI agent to make it.
https://news.ycombinator.com/item?id=47340079
Yet, we've still seen AI generated submissions on the front page. It would be nice if the rules were consistent.