Ask HN: Please restrict new accounts from posting

I don’t know if I’m the only one, but I see lots of clearly AI generated posts recently in HN and mostly coming from new accounts (green), it is more noticeable in the Show HN section.

I wish the team can either restrict new accounts from posting or at least offer a default filtering where I can only see posts from accounts with certain criteria.

I don’t want to see HN becoming twitter, which is full of bots and noise, as this would be a really sad day.

HN does a good job moderating and blocking spam from new accounts.

“shownew” : “no|yes” option would be nice.

I furthermore wish that "posting an LLM-generated comment (i.e. and passing it off as your own)" was worthy of an instant ban, because I see this sort of behavior from non-green accounts as well.

EDIT: I meant (but totally forgot) to qualify that my "proposal" would only apply when the LLM-ness is self-obvious—idk, make up a "reasonable person" standard or something. Presumably, the moderators would err on the side of letting things slide. Even so, many comments I've seen are simply impossible for any reasonable person to claim as "human-written"—the default ChatGPT style is simply too distinct.

The moderators are supposed to just know it when they see it? It's that black and white to you? Or are lots of false positives a price we have to pay?