The problem is that people are shooting the messenger and focus on a guy living by his words which is quite unusual.

The same happened here where most comments discuss stallman and not the actual matter of the post.

This is a nice list of sourced documentation about facebook dangers, I happen to maintain one myself for future reference and it is quite useful to have.

FYI ghostery is on the advertisers side and should be avoided altogether if you really care.

http://www.businessinsider.com/evidon-sells-ghostery-data-to...

http://venturebeat.com/2012/07/31/ghostery-a-web-tracking-bl...