Pokes are kept even after the user removes them. Facebook is collecting data about people without their knowledge. This information is used to substitute existing profiles and to create profiles of non-users. Privacy policy and consent policy is vague, unclear and contradictory. Users cannot see the settings under which content is distributed that they post on others pages. Face recognition feature is an inproportionate violation of the users right to privacy. There is no guarantee that these applications are following European privacy standards.”]
Source: http://europe-v-facebook.org/EN/Complaints/complaints.html