I think your points are still valid, but "still notice downvotes happening" doesn't make sense. You can still dislike a video on youtube. The difference is that

I think your points are still valid, but "still notice downvotes happening" doesn't make sense. You can still dislike a video on youtube. The difference is that when you go to a video with 12 million views making extraordinary claims you'll no longer see 65k downvotes and realize it's a waste of the next 12 minutes of your life and skip it.