[throwaway2016a]

Is that a fact or assumption? Do you have a source?

That's not a jab at you I am legitimately interested in reading it if you have a source.

I have literally not found one I cared about doing a MitM exploit on that actually did it. Granted I haven't tried social networks because my interest lies mostly in apps that don't have public APIs and most social Networks have APIs.

I won't say who they are because this is not the right venue but I can say for certain that neither my bank or my alarm company uses pinning.

[nnd]

From personal experience reverse-engineering apps: whatsapp, facebook, twitter, skype, uber, snapchat, instagram - all pinned. The trend is definitely there, more and more apps adopt certificate pinning.