[nitrogen]

You touch on your real problem with Facebook, and that is its size. That's it.

There's the saying, "Quantity has a quality all its own." Turning a thing from an "occasionally" into an "always" can effectively change the nature of the thing entirely.

[jasonlotito]

Yes, because of the internet, your friends can take pictures of you and share them online. You won't tell them to not take pictures of you, nor will you ask them not to share them online.

That's the internet's responsibility.

[nitrogen]

If Facebook uses its size to socially engineer users into uploading photos of others, then that's Facebook's responsibility.