Curation was what search engines replaced, as the scale of information available outgrew human capacity to keep up. We are almost certainly going to have that problem again soon, for a while at least.
Really, what I hope is that the already burgeoning problem of AI-generated garbage gets solved, and that people rediscover the virtues of social interaction that's based in reality, rather than in the optimization of strongly emotive idiocy that adtech-driven social media demands.
There's probably not more than 50k meaningfully unique sites with some notable amount of actual desirable information, after excluding all the SEO'ed sites, blogs repeating each other, etc... at least for the English web.
Manual curation is entirely possible since probably there aren't even 50 such sites being created per day on average. This is including every single forum still open to public viewing. There really aren't that many left (<10k).
Especially worth mentioning in this connection is https://news.ycombinator.com/item?id=39424688, as of this writing #1 on HN. I mention it here because what it says about moderation, and about centralized platforms being both the highest-value and most poorly managed targets, applies here also.
Why would you expect otherwise, that intelligent people will suddenly lose their ability to perceive what's higher quality content?
The issue is that those are now impossible to find.
A huge proportion have simply stopped updating, gone offline or moved to a paywall on substack/medium/etc...
The 50k number is all inclusive and probably even still an overestimate.
And I never mentioned whether something 'qualify as information worth retaining the ability to retrieve'... are you confused about what the comment chain is about?