This is all well and good, but—again—what you aren't addressing is the (claimed) negative effects of visible downvote counts, mainly (as I understand it) spurio

This is all well and good, but—again—what you aren't addressing is the (claimed) negative effects of visible downvote counts, mainly (as I understand it) spurious downvote brigades against relatively small/vulnerable creators. These use cases you and others (claim to) care about so much must be weighed against the (claimed) damage done by continuing to support them, so it's not just a question of live and let live. When downvote brigades are brought up, the first response is always something along the lines of "all engagement is good" and "downvotes aren't a negative signal in the algorithm", the thrust being that downvotes don't actually hurt creators and they're just being a bunch of crybabies. But it is, frankly, totally incoherent to claim this and then turn around and also claim that downvotes are an important signal for deciding which videos to not watch. I hope you can see the contradiction there. I point this out, and the next claim they trot out is "downvote brigades are rare to the point of being insignificant". To which I say, well, prove it. Prove it, show me the data, and make the case to me that saving X man-hours of wasted time watching unworthy how-to videos is worth crushing Y creators' nascent careers.