[bluGill]

I'm not sure we can. In 2000 everyone had a homepage that they (poorly) maintained with links to places they found useful. This gave google a large set of data to mine for places that are useful and worth searching for. Not such things are not common and so google can't find the signal as easily. (people share links on social media but that isn't google searchable)

[underlipton]

You used to be able to see Twitter results in real time on Google. Facebook, too, early on, IIRC. Google could pay them to get access again, but... won't.

I suppose Google would have to somehow exit the personal data broker business to pull this off, too.

[masfuerte]

According to this article [1] last month, Google deliberately made search results worse in 2019 because they get more ad revenue from the spammier sites.

[1]: https://news.ycombinator.com/item?id=40133976