> but it's embarrassingly easy to train the AI on interesting or not content based on upvote information...
And yet, the best topics and answers do not necessarily correlate with the most upvoted.
And yet, the best topics and answers do not necessarily correlate with the most upvoted.
It can't be objective since we are humans.
HN guidelines and moderation are doing a decent job of promoting interestingness in general. I don't think upvotes are a reliable indicator, but maybe they are as close to good enough as a system can be.
Depending on timing, you see great topics flying under the radar. Likewise, "poor" posts regularly prove to be quite popular. But then again, this is also subjective.