Buzzfeed News:

Facebook has submitted a patent application for technology that would predict who your family and other household members are, based on images and captions posted to Facebook, as well as your device information, like shared IP addresses. The application, titled “Predicting household demographics based on image data," was originally filed May 10, 2017, and made public today. Facebook did not immediately respond to a request for comment, but the patent suggests that the company is interested in exploring the technology, which is intended to help Facebook target advertising more effectively.

Burn it the fuck down.

And yes, this would include Instagram photos.