[lonk11]

How about this way to automatically address the Eternal September problem:

When you upvote an item - you connect stronger to people who upvoted that same item.

When you downvote an item - you connection to those who upvoted it becomes weaker.

The content is ranked based on how strongly you are connected to people you upvoted each item.

That way when a lot of clueless/uninformed people come in and start upvoting useless to you content - they don't create noise in your personalized content list.

The content you see comes from people who have proven to find useful content for you.

This is how my hobby project https://linklonk.com works.

I did a Show HN a week ago and that post has more details: https://news.ycombinator.com/item?id=28405659

[mattowen_uk]

On the surface this seems reasonable, but in reality I think the users would end up inside echo chambers very quickly.

[lonk11]

Yes, an echo chamber is a concern. But unlike other systems, you are in total control of who you get your content from. You are responsible for what you see. Which I think is the best place to have this responsibility. This does not work for everyone (e.g., kids don't know what is better for them), but hopefully many people will find it useful.