This is why the bump model that 4chan uses is superior. You can sort threads by activity, but all posters display with equal weight, and you must utilize critical thinking to evaluate each and every post (unless it is from a trip user whose authority you trust in a particular domain), not some little number that pushes them to the top or sinks them to the bottom. There are (You)'s, but that can indicate consensus, disagreement, controversy, or something else, and you need to sus that our for yourself.
Consensus-based truth models are frankly shit for most types of topics. Heck, even for scientific topics, the peer review model has been shown to be completely bankrupt.