May I ask if you're affiliated with Pinterest in any way? I'm reading your responses and while I have a very open mind, I feel like you're really handwaving the obvious (to me and many others) problems Pinterest causes and defending them very strongly. This of course doesn't mean you're affiliated, I'm just curious.

I am also good friends with one of the original Pinterest engs and that person defends it in the same, almost irrational, way, but I probably would too if my stock value depended on Pinterest being ingrained into Google search results.