2-Appealing to human emotion --- Many humanitarian organisations require staff members and external service providers to sign informed consent for taking and sharing photographs of beneficiaries: as matter of professional ethics, but most importantly, for privacy protection purpose.

E.g. Some individuals who were photographed interacting with the UN Secretary-General might be survivors of abuses by authorities. Posting the photo on Facebook without their consents may bring adverse effect.

Source author: Ivy Susanti ivysusanti@gmail.com