It's not a big deal, and I know a lot of users do this - but I've seen a lot of youtube censorship of truthseekers over the years and the blockchain is a permanent archive that we can't update after a certain period..

So If all a post has is an youtube link and no description, and doesn't manage to generate any comments (besides spam), and youtube decides to break that link..

Then all we have left is extra data being stored redundantly around the world for eternity, and no clues about search terms to find the content elsewhere :(

It's just something I'd been thinking about lately, I've already had one of my #downtherabbithole posts break after the video got taken down (after years online, till my steemit post)

Besides future-proofing the post , a good description or transcript makes the content searchable and more visible = more votes