For the past couple years I've wished LessWrong had a "sort posts by number of pingbacks, or, ideally, by total karma of pingbacks". I particularly wished for this during the Annual Review, where "which posts got cited the most?" seemed like a useful thing to track for potential hidden gems.
We still haven't built a full-fledged feature for this, but I just ran a query against the database, and made it into a spreadsheet, which you can view here:
LessWrong 2022 Posts by Pingbacks
Here are the top 100 posts, sorted by Total Pingback Karma
Would love for the spreadsheet to include tags to further simplify filtering.