Do you have a specific example of something that should not be allowed but did not get flagkilled?
https://news.ycombinator.com/item?id=48411799 originally linked to the pdf version which is clearly AI generated.
https://news.ycombinator.com/item?id=47602500 Also clearly AI edited.
Separately I've gotten down voted for pointing out something is AI generated, but if it's explicitly policy that it isn't allowed, it seems like that should be written down.
Perhaps the moderator comment about "obvious smell" being killed is defining that line and the line allows lots of fairly obviously AI edited prose through. We've chosen a boundary and it's different from what I'd like (and think is best in the long run for humanity), but I will accept it and move on.
Even if I thought that the style of AI produced prose was good, I still wouldn't want it to be the only style of writing I ever read unless I open a book written before 2022.