I think the 20% distribution is actually a valid strategy. It doesn't have to be based on views.. could be based on likes too. It would be the same thing as Steem extending the voting rewards from 7 days to like a year we'll say. The only difference is that it's capped at rewarding only 20% and not the full portion of money.

Besides Steemit, DTube seems to be the most popular steem-based app right now. But with your argument, they too fall to the demise of the 7 day cap. Great video content takes as much effort to produce as anything else.

I think the real issue is with Steem. Steem misses out on a lot of use-cases by limiting us with a 7 day reward pool. One solution would be, when they release the ability for people to create their own tokens, to also be able to choose a time limit for rewards.

With that said, I agree with what you say, and I think DBooks suffers this problem at a much greater length. Also, the design of the MVP is very weak (a bookshelf as the background???).

I will say that fundamentally, the idea of DBooks is pretty interesting. If we were to imagine the centralized version of it, it would be like Scribd.