> I use downvotes to signal disagreement when, from my perspective, someone is giving bad advice, not accurately representing the truth, speculating in an unproductive way, distracting from the discussion with completely unfounded claims, etc.

This seems to be a really wide net for downvotes, and almost certainly won't match other people's use cases for downvoting. I don't think downvoting should be open to interpretation like this, hence why I think it should be removed. The alternative? Just don't upvote, or flag if something is truly inappropriate.