Yep. One can earn over 10% ROI annually through curation rewards alone if voting is done "correctly" (at the right time, one the right type of author, etc). And that's 10% if the price of STEEM stays the same. So basically they earn a dividend of more steem.

Then they can also lease out steem power and earn STEEM that way too.

I've been saying this platform needs to be advertised as an investment as well as a social media platform. Most of the advertising I see is more focused on "earn money through posting"....