You'd still have to deal with adversarial spam. Competitor A pays a botnet to visit and downvote Competitor B's links at will, thus tanking its ranking. In ord

You'd still have to deal with adversarial spam. Competitor A pays a botnet to visit and downvote Competitor B's links at will, thus tanking its ranking. In order to detect malicious activity you'd have to use a bunch of other signals, and also to use the downvotes with some suspicion, so you're back at looking content quality, reputation, page speed, and many other signals. Which sounds very similar to status quo. Personally I'd like to see some sort of explicit input. If not used collectively, at least to customize my own results, like it happens on YT/Netflix/Instagram/etc - e.g. "never show results again from this site", or "I dislike this type of content".