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I think that rewarding interaction is as important for the blockchain than quality content. I wouldn't mind to spend some of my voting power on nice interactions on such platforms.

Additionally, the voting power "spend" is "curation". The requirement for curation is to make the votes, so no curation is lost - its more like velocity of money - the same curation but some of the rewards are rewarding the community for actions.

"Comments" is one simple action, but comments with conditions (answer questions, fill out survey, share experience/screenshot), can "make the community" work for that value, and potentially bring even more value to the project/community.

can "make the community" work

I like this concept because it would lead to a new dimension on the blockchain, which is really working together :-)