Well I really like this approach! Who would have envisioned that catching virtual Pokemons would be a great success!
The general public decides what will make it and what not!
That's why it is great to have steemhunt on the blockchain, maybe it would be the hidden gem, but like you wrote the more of these, the more chance there is that something will hit gold!
The question is: how does the steem blockchain attract these developers? Most of the developers who do have an intrest in the steem blockchain are already here and mostly developing tools to explore the Steem Blockchain.
We could say that the performance of the Steem blockchain is advertisement enough, but I doubt it that it will also give an insight to future developers and investors that it could be the new Ethereum (in a positive way then).