I think as other users have pointed out the numbers need some tweaking. We're finding that large investors avoid steem because of the time investment, staking at these returns won't change that. However I think that if the minimum stake required is lower than on other platforms we might see attraction from small-time investors. It would still draw steem liquidity out of the markets, and a low required vesting amount might make this more attractive to users in countries where steemit is gaining traction.

Staking shouldn't have such a smaller time window to cash out than powering down does, and it's debatable whether or not powering down should take as long as it does considering how volatile the markets are.

Steem is very centralized, I think gearing our coin towards small to medium investors by having attractive options for staking small amounts as well as increasing the value of active curation slightly will only increase its adoption amongst a broader pool of users. I think a play of facing the coin more towards developing markets might pay dividends if we continue to see acceleration of economic growth from the nations where steemit is growing explosively in popularity. Instead of making it attractive to existing wealthy investors from wealthy nations we could make it something that people from countries where incomes are steadily rising and middle classes are forming could ease into steem and benefit from in its growth the future, and the gains would be reciprocal.

I think the crypto markets are already flooded with coins operating on the concept of "the rich get richer", we need to differentiate ourselves if we want an edge.