We already use YouTube, and this is subject to censorship. Steemit doesn't have the same censorship restrictions.
A member of Steemit produced a video hosting site similar to YT named Dtube which is also decentralized. Many Steemit posters use Dtube as an alternative to YT.
I saw Dtube and was wondering what is it about. It seems like a forked, decentralized YouTube, but why Steemit can't host videos on their platform?
I think dtube is associated with Steemit. They probably use a different site because of hosting costs, and to boost traffic through cross-linking.
Dlive is another decentralised streaming platform that I need to investigate.
There are a lot of projects making social platforms on blockchain (LBRY, Sapien, Sphere, SocialX) but I don't think any of them has fully launched yet. This year we should see which one o them can deliver and make a working product.