I love this! Especially the psychology (“Most people are too lazy to curate their feeds”). And I have also long admired/hoped for a Google+ Circles-like* feature.

But I agree Twitter is more of a protocol, and could be expanded to the above needs, however it is owned/controlled by a ad company, so it will also probably never happen…

(https://j11g.com/2015/08/06/if-i-were-the-ceo-of-twitter/)