On: Instagram's Fake Changes To Your Image Rights

As one of the comments says:

  if one investigates further they will find that most content posting sites
  contain the exact same language (though stated in a variety of legalese). Among 
  the most popular are Facebook, Flickr, Youtube, Pinterest and Reddit. Apart
  from the "sale of content" these terms are also found in each and every
  internet service provider's terms of service and policies.

For example, I posted Twitters version of this 'outrage' http://news.ycombinator.com/item?id=4939705

I'm no lawyer, but I figure they all need this type of language in their Terms to be able to show your images to anyone other than you, advertise against them, include them in promotional screenshots, etc.