Deleted it......FB did two things for me;
Made me jealous of others people's idyllic lives (haaaaaaaa)
Made me wonder why I am so intrigued that Nancy's cat is so purrrrfect and everyone keeps hitting likes!!!! YIKES!
Also, concerned about their (lack of - data mining ) privacy policy.
Of course this could happen with any public forum where there is no reasonable expectation of privacy and people post. Anyone's posts/log entry information may be subjective to subpoena I suppose........