Yes and no

A social media feed implies 1(n) curated by 1 algorithm hosted on Facebook/Twitter/Instagram

What I was thinking is:

- foo.social

- bar.social (tech curations)

- java.bar.social (sub curated Java list)

All these DCS (domain content servers) would be polled by your own local client

Your client can then aggregate or organise how it shows this feed

e.g. I could have a trending aggregator for situations where a blog post is shown on multiple domains (sort of shows virality)