https://www.steem.center/index.php?title=Dan_Larimer
After reading this i think that nobody can beat dan in field of blockchain unless he is satoshi Nakamoto. I don't believe in ned he is delegating steem power to useless purposes(i think you all understand). He is only improving his vocabulary(aggrandizement).
Useless purposes like dtube?
there are many other useless things, why you got dtube first in your mind?