It's a good idea, but the photos you upload form a revenue stream for them. I have no issue with free online services harvesting usage and profile information provided it's shared anonymously. How can you anonymise a photo?
FACEBOOK is garbage in-garbage out. I use it as truly social media, to connect with people I don't see on a regular basis--but it feeds the narcissism of our society. Children should not have FB pages until middle school, and even then, they should be monitored.