This has already been mentioned a few times. Just find the relevant issue on GitHub and give it an upvote.

• The rank of a post in the aggregated feed should be inversely proportional to the size of the community #1026
• Weighted Community Subscription for Customized Feed #3518
• Balance Instance Scores Based on Monthly Active Users #3642

I knew I recognized him from somewhere. He was the developer of lib.reviews. https://github.com/eloquence

I’ve saved this, but it would be nice to see the syntax somewhere in the search engine

Which is why we should make the implementer’s job easier by providing only the relevant information instead of wasting their time with a flood of comments on the issue tracker.