Interesting, I has a similar idea for this problem of being overwhelmed with sources and the need to go into each submission and its comments.

But I went in a different direction, it is a mix of RSS reader with summarization. https://rss.sabino.me/

It is open source, and hosted for free on github pages, so you can customize the feeds and reddit communities.

There is also a configuration ready to use the locall llama from github build system, so you dont have to rely on paying for AI services