Aha!
I was wondering how the issue of custom avatars would be resolved, given that I'd seen a few on the forums but couldn't for the life of me find any documentation elsewhere. I suppose I'm the sort that likes to resolve issues like appearance before presenting myself, so I had held off from reading the forums to avoid the temptation to post without a face (as it were). No Rorschach connotations intended.
I'm glad this topic was readily visible.