Triggered by the recent Facebook acquisition announcement, some good folks are having a precautionary action of ‘opting-out’:

> Run it, and it’ll download all the photos from yuor instagram feed into the current directory, named with the upload date and title. It won’t re-download files that already exist, so you can safely run it nightly and just download new photos if you want to do that.

It does one thing: download your entire Instagram photo collection to your Mac.