For some things, boring is good. Sell good car parts. Sell reliable financial services. Be boring and win.

But Facebook didn't their users and especially their sixty billion dollar valuation by being boring.

Facebook - at this moment - has one of the most amazing web development teams on the planet (if reports are to be believed). They do a lot of slick development with relatively few people. But how long can they keep that up now that they've stopped being "the thing that's happening??

Fair point, but when each user adds less and less value over time, that billion plus userbase can be as much of a liability as it is an asset.