I'm wondering: does that generally mean the idea is just not interesting, or is it more about timing or wording?
Would love to hear how others interpret silence on HN. How do you know if it's your idea that didn’t resonate, or just a quiet post?
I think your expectations of the HN community doesn't quite match what people are primarily on here for. If I may; you're treating it as a way to get early feedback on startup / product ideas, but HN users are primarily here to discuss or debate interesting topics, not to help you get a product off the ground.
Yes, people also provide feedback on products, but usually it is in a later phase of its development and then lands as a Show HN.
If you look at the Ask posts (https://news.ycombinator.com/ask) you will get a sense of what kinds of things resonate.
And sometimes it's just timing -- as in, I never saw it.
If you had serious plans to make a GPT-6 that's a different thing but we don't want to hear about "me too" ideas unless you've got something to back them up, and probably don't if you do have something to back them up -- I think you'd get better result pitching something AI powered without ever saying "AI".
But seriously, the average post to HN gets exactly 1 vote. Don't take it personally.