I thought this was a very nice idea for a topic. But if people don’t follow the two simple rules above, it’s no different than just going to the main page of Youtube and letting Google’s secret algorithms recommend stuff for you. There is no shortage of funny/cute/sexy/whatever videos on the internet. If an accurate description is not given, the links are really just clickbait.
I do, however, think that comments about the videos should be allowed in the topic, provided that quotes of what post is being commented on are given.