To help with discovery of new RSS feeds I use this mechanism for https://linklonk.com - when you upvote or submit a link, you connect (subscribe) to all users that upvoted and to all RSS feeds that posted that link.

For example, if you submit this link: https://stratechery.com/2023/netflixs-new-chapter/ then you will get connected to two RSS feeds that posted that link: https://stratechery.com/feed/ and https://hnrss.org/newest?points=100 (ie, the HN feed of items with >100 points)

As you rate content you get connected to more and more sources.

The way it solves the oversubscription problem is - whenever a user/feed posts something - your connection to them goes down slightly. As a result you see content from sources with the highest signal-to-noise ratio first.

The differences from Artifact is:

- Artifact uses implicit signals such as read time; LinkLonk uses your explicit upvotes. I think implicit signals are fine for entertainment content, but not for informational content. Time spent is not equal to becoming better informed. I think only you can be a judge of that.

- Artifact uses an opaque AI algorithm optimized to do what they want; LinkLonk uses a transparent algorithm, where each recommendation comes from a feed or a user that you have co-liked items in common.