Not OP, but I speed up YouTube all the time watching podcast-like content. If the content is all in the words or audio that's not music, speeding it up doesn't hurt quality, and it helps my ADHD brain stay on topic if they're wheel-spinning for a few seconds with some 'ums', or just rephrasing something.

Basically... It's a really good way to condense compatible kinds of entertainment, at least for me. Unless it's a topic I really have to mull over, the sped up info delivery is priceless.