Perhaps you could advice DTube on some agressive marketing methods, not sure if they're waiting for their platform to be more polished or what but I think there's been zero outreach so far from them outside the Steem sphere.

And as you mentioned, there's many big time youtubers that have been demonitized, these people should be the first target of any outreach. Plain and simple. DTube could even offer them guaranteed exposure through their own delegated SP for period of time.

We can't just be passive, sit on our asses and hope for someone to find our services. Marketing is lucrative business for a reason. But many of our dev teams are just that, devs. We need more marketing people and those who can come up with good business strategy.