I noticed what you are talking about. When I made my DTube account, I saw that I could use my Steemit account, and that they were linked together. I really like this about this blockchain.

One thing that I think this platform does need that it doesn't have is a central hub type app. For example, if I want to change my about section on DTube, I must go back to Steemit. Instead, it would make more sense if there was a hub, or they both had the same interface for their cross-overs.