The end of the report says something along the lines that Facebook can expect to win an opposition if the Face* thing can be argued to be related to something F

The end of the report says something along the lines that Facebook can expect to win an opposition if the Face* thing can be argued to be related to something Facebook actually does and if there's a significant portion of a survey that associates it with Facebook (30% is not low). So Faceplanting is fine, but Facetalk, Facemail, Facefriends, Facephotos are probably things Facebook can oppose and win if they haven't been trademarked yet.