Before you make that Facebook post complaining about Privacy issues or Copyright infringement, know what you’re talking about and where your information comes from. Everyone who signs up for a Facebook account has the option, no, the obligation to read the terms of service you are agreeing to. These terms are very direct and open about what your rights and obligations are and what rights Facebook has. Facebook is not an entitlement, it’s a business. You either agree to their terms or go somewhere else.
One more tidbit about those terms, they are not user modifiable, they are only modifiable by Facebook. If you have doubts about any of the chain letters check snopes.com or http://nakedsecurity.sophos.com/. Don’t waste everyone’s time by spreading unverified rumors.