You work at Facebook, I know you say that on your profile, but you should probably disclose that in comments supporting them.

I used to work for a social network that wanted to let users get their own photos out of Facebook and into our network. We built a Facebook app that expressly served this purpose; users only enabled it after knowing what it would do and desiring that consequence.

A few weeks after we added this feature, Facebook told us if we kept doing this -- if we kept letting users import their own photos -- our API access would be terminated.

So, yeah, walled garden.