Filter based on upvotes/downvotes?

Switch to an instance that doesn't do downvoting, and you'll never know the difference! h/j

But to answer your question, isn't that what "Scaled" sort is? Should be in the filters drop-down when you're looking at your posts feed. I don't think that option exists for comments within a post, if that's what you mean.

Why would you want to do that? Many comments I've seen that have been downvoted had valuable contents.