So, here is the paradox: (in the future) the less we will continue to create content (HN, Blog...), the less ChatGPT-like answers will be "relevant". So, we may go back to asking our fellow humans more.
What I'm more worried about is all that cheap (pricewise and quality-wise) AI content proliferation, because it will worsen the effects of that Human-content decrease. It will be AI feeding on itself, like zombies.