I agree that training on copyrighted material is violating the law, but not for the reasons you stated.

That said, this comment is funny to me because I’ve done the same thing too, take some signal of disagreement, and assume the signal means I’m right and there’s a low-key conspiracy to hold me down, when it was far more likely that either I was at least a bit wrong, or said something in an off-putting way. In this case, I tend to agree with the general spirit of the sibling comment by @williamcotton in that it seems like you’re inventing some criteria that are not covered by copyright law. Copyrights cover the “fixation” of a work, meaning they protect only its exact presentation. Copyrights do not cover the Madlibs or Cliff Notes scenarios you proposed. (Do think about Cliff Notes in particular and what it implies about AI - Cliff Notes are explicitly legal.)

Personally, I’ve had a lot of personal forward progress on HN when I assume that downvotes mean I said something wrong, and work through where my own assumptions are bad, and try to update them. This is an important step especially when I think I’m right.

I’m often tempted to ask for downvote explanations too, but FWIW, it never helps, and aside from HN guidelines asking people to avoid complaining about downvotes, I find it also helps to think of downvotes as symmetric to upvotes. We don’t comment on or demand an explanation for an upvote, and an upvote can be given for many reasons - it’s not only used for agreement, it can be given for style, humor, weight, engagement, pity, and many other reasons. Realizing downvotes are similar and don’t only mean disagreement helps me not feel personally attacked, and that can help me stay more open to reflecting on what I did that is earning the downvotes. They don’t always make sense, but over time I can see more places I went wrong.

Maybe if you constructed your argument in terms of the relevant statutes for your jurisdiction, like an actual copyright attorney does, HN might be more receptive to it?