It is a Keira forum, so I'm not too surprised people use Keira avatars. Especially at the start of their fandom, people are likely to use photos of Keira that they like a lot, and this does tell other users a bit about them.
Not everyone is familiar with photo editing programmes, which poses another problem.
Lastly, if I were Keira, I'd feel incredibly awkward using some magazine shot of my face for an avatar
