The idea of a public cache available to anyone who wishes to index it is ... kind of compelling. If it was the only indexer allowed, and it was publically governed, then enforcing changes to regulation would be a lot more straightforward. Imagine if indexing public social media profiles was deemed unacceptable, and within days that content disappeared from all search engines. I don't think it'll ever happen, but it's…
Common Crawl is attempting to offer this as a non-profit: https://commoncrawl.org
Hijacking scroll like this is one of the biggest turnoffs a website can have for me, up there with being plastered with ads and crap. It's ok imo in the context of doing some flashy branding stuff (think Google Pixel, Tesla splashes) but contentful pages shouldn't ever do this.