Fred Wilson's comments on Steem were widely picked up (http://avc.com/2016/07/some-thoughts-on-steem/), but there have been several other supportive voices from the higher echelons of the SV tech scene over the last few days.
Naval Ravikant (Angellist)
Max Keiser
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Bullish articles out of the mainstream crypto such as the one below will help coax more high-profile folks (and Joe Publics) to venture in and take a closer look at the Steemit platform.
http://cointelegraph.com/news/steemit-may-become-killer-app-as-it-looks-to-draw-1-mln-bitcoin-users-yearly
This is such uncharted territory I respect everyone for their opinions but honestly I don't think anyone can predict what is going to happen with this platform. It really depends on how the users react and many, many other factors including technology that doesn't exist yet. As the plugins and third-party interfaces show up then we will really start to see the power of the blockchain. It's everything reddit can do times infinity.