Hi exile, in fact they are building a video service on top of ipfs and they are posting the content on steemit in behalve of you. while I like the idea I don't think Dtube will last that long as new technologies will arise that will make the development of a decentralised video service much easier and better. I mainly think about the upcoming EOS platform, I really believe that we will see many more decentralized youtubes and even more steemits in the near future. I don't want to spread bad karma, I'm just giving my 2 cents. I wish all the best to Dtube!