Why Did Mark Zuckerberg Just Join High-End Pinterest Competitor The Fancy?

Facebook hasn't yet confirmed whether it's the real Mark Zuckerberg, although it's a verified Fancy account, and the high-end Pinterest competitor has been generating a lot of buzz lately. The New York-based startup recently launched its own commerce platform, which is already seeing an average of roughly $50,000 in spending per week. It boasts nearly 1 million users, Kanye West's seal of approval, and a $100 million valuation thanks to the backing of PPR and angel investors such as Jack Dorsey, who sits on the company's board along with Facebook co-founder Chris Hughes.