When all is said and done it's simply about behaving ethically.
As Ermy (a UK social work blogger) has written:
‘If someone doesn’t realise that disclosing details of a visit on their own blog is counter to professional codes of ethics, it isn’t because they don’t ‘get’ social media, it’s because they don’t ‘get’ professional codes of confidentiality’.
Reamer, F.G. (2011, July 1). Developing a social media ethics policy. Retrieved from http://bit.ly/1hDM210