I think you missed my point that the idea of a "feed" being something scholars need is not really clear. It is more that a feed is something that website developers know how to make
Yeah sorry I was being overly oblique above: I know a lot of academics who learn about a lot of results via twitter. Personally I don't do it, but a lot of people in academia do.
I'd consider twitter a feed, and one driven by a proprietary algorithm at that. I'm not sure if it's better or worse to have the interest of these academics guided by a company like twitter, but maybe having some other options is good.
- read arXiv (the algorithm there is pretty simple, but it's a feed of sorts), or
- follow twitter accounts to learn about new results
So, like it or not, a lot of people are getting their feed from algorithms.