Well good for the Instagram developers. I like Instagram but will probably stop using it now - including going through the futile effort of deleting something on the internet. My reasoning is that although other people could "steal" and repost a photo from my Instagram account if they were so inclined (and yes, I am exaggerating my creative abilities - as if someone would want to steal one of my snapshots) this changes that equation by probably transferring rights to said photos to Facebook, a service that I do not use and am not a member of.
I don't even understand the FB juggernaut. Poor security, ugly interface, claims to private information, etc... and somehow government, companies, and people are all pushing everyone to go there - to a company whose business model is to provide a service in exchange for using your data in ways you don't expect. Time to boycott any company who will only provide information or contest entries or whatever to people who like them on Facebook. I don't want to work with a company that will force me to provide information to and use the services of another company that has nothing to do with what I am looking for.
Sure, I will be lonely and eventually hungry and unable to perform any kind of commercial transaction but...hey wait a minute? Is Facebook the anti-christ? 😱