So far HN users seem to be doing a pretty job of flagging them.
Of course, the big question is what to do if/when they're smart enough to fool everybody.
Of course, the big question is what to do if/when they're smart enough to fool everybody.
Edit: More correctly, they'll be making contributions to the discourse that closely mimic the human distribution, so from a pure content perspective they won't be making the discourse any worse in the very short term.