I'm pretty sure it's no Steem killer. Steem has already been proven and established itself.

Synereo has the ecomomics right, but it approaches the problem from an entirely different angle. Steem is an whole new ecosystem of it's own, while Synereo acts more like a layer on top of existing ecosystems. In fact, Synereo and Steem could be a powerful thing used in combination!

About self-voting; Dan acnowledged the fact that you can't stop self-voting if you can't prove individuality. People can just create two accounts and vote for themselves. Thus, self-voting was taken into account in designing the ecomomics of Steem. I'm pretty sure that's the case with Synereo too, as they are incredibly smart people.

A factor in favor of Steem is that it organically shows up in search engine results. That is a powerful marketing strategy and is only starting to show it's power. The execution was also very fast in the beginning, and Steem already has quite some ecosystem of development and applications.

I'm invested in Synereo, and beleive in their ability to make it work. There will be space for even more such networks, because it's not a zero-sum game.

Nice article. Thanks!