[lonk11]

What you are describing is similar to how my hobby project works: https://linklonk.com

When you upvote content (+1) you make your connection stronger to those who posted that content and also those who also upvoted it. When you downvote (-1), your connection to the poster and other upvoters becomes weaker. The content in your feed is ranked base on how strongly you are connected to those who upvoted the content.

For example, I upvoted the OP post on LinkLonk: https://linklonk.com/item/3406294698351951872. If you upvote that item then you will get connected to me and to two RSS feeds that posted that content: the blog's feed (https://www.tbray.org/ongoing/ongoing.atom) and the the HN's feed of newest items (https://news.ycombinator.com/rss). As a result you will start to see other content from those RSS feeds and from my "main" channel more prominently in your recommendations.

Users can post/submit links under different user channels. So if your hypothetical E2E person were to post E2E stuff under their "E2E" channel while keeping the furry stuff under their "furry" channel then you would only get connected to their E2E channels if you only +1'd content from that channel.