I also have some issues with Dtube sometimes. But as far as steemit replacing it and YouTube, dont think that will happen. There will always be people opposed to steemit and i fear it may be the majority that feel that way. So YouTube will always have a place. And some improvements need to be made to Steemit for it to become widely accepted. It can happen though. Everything starts small and works up. But YouTube will always remain superior to dtube. YouTube set the bar high and dtube is not even close