I’ve just added a score parameter to the community RSS feeds so you can get a RSS feed of posts at or above that score. e.g. https://piefed.social/community/fediverse/feed?score=20
If there is interest then we can add more filters, for flair/tag, etc. But from the server logs it doesn’t seem like many people use RSS.
Nice feature. Out of curiosity, by “score” do you mean upvotes or the net ratio of upvotes and downvotes?