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You are also right that to make the incentives more interesting to delegate to other projects than voting bots, you need some source of money coming from outside the ecosystem.

Ads, like on Partiko, make a lot of sense. A system built around hunting for new products like on SteemHunt certainly also could have interesting features offering "returns" for delegating power to their account.

It's Web 3.0 social media marketing really, a lot of innovative ideas are certainly coming.

Interesting times ahead, I share your excitement!