Cue some deep learning over this centralized dataset... we might just see 'profiles' emerge that allow the system to build very ad hoc results depending on who searches what.
E.g. one of the strengths of Google (which I've used for a decade without ever deleting history) is to give me very hands-on blogs and procedures whenever I search for some tech — I don't even have to add "guide" or "tutorial" or "hands-on" or "how to", whenever I use my dev account Google just knows what I'm after — “this guy MAKES, he don't care for fluff”. I've compared searches with friends (non-tech non-nerds), they get the usual wiki / reddit / commercial stuff, with my meaty top 10 stuff often on page 2-3-4 (if even that!) for them.
This is the kind of smarts I don't know how to replicate without ML. This is also where Spotify who has had years to figure it out remains extremely generic (frankly bad at deep cuts, which at a basic level used to be one of their initial strengths).
