I love Bittube. And of course, it won't replace Youtube but it doesn't have to. I am sure it will be something like medium or steam in relation to reddit. Hard to find projects in crypto space with such a fast development speed!
No need to replace Youtube, that would be crazy. The important thing is people as consumers need options, and right now YouTube is a de facto monopoly in this area. If they get hard competition from projects like ours, maybe they will improve themselves too and everyone will benefit.