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A group of volunteers curates for a small share. Downvotes have to be initiated by the delegators.

"Downvotes have to be initiated by the delegators."
It SOUNDS LIKE (but I may be wrong) you are borrowing people's money to form a massive upvote/downvote tool, giving investors access to huge downvotes. Which is essentially selling downvotes. Yea? (Serious question.)

I am not curating, the only money I get out of this is what I receive for my own delegation. The same share as any other delegator. It does not get more when others delegate. How is this selling anything?