[azalemeth]

I have exactly this issue with video, moaned about it here a few weeks ago -- and another HN reader explained, very pithily why the trend has occurred: money. It's much easier to monetise a YouTube video than it is an easy, or a blog post. Video impressions get more currency/eyeball even outside of YouTube. Our lack of ability to skim read or rapidly search for information doesn't enter the calculus.

[AshamedCaptain]

These days I'm supposed to watch a 30 min video in order to check if a Wikipedia source really contains the quoted statement.