So I noticed the word 'atheist' is being used an awful lot on this site. I've seen people put it in their profile descriptions, topic titles, tags, groups (check them; every other group's name is following the 'atheists from here and here' pattern.) and FSM knows what else.
The reason for this might be that people are enjoying the idea of an atheist community on the internet; a hideout, if you will. Even I admit that this place, despite not being around for too long, already has this specific nice atmosphere of its own (partly due to absence of trolls).
Maybe people like to spam the word because it a) sounds and feels liberating and b) they'd be hesitant to use it in real life.
If you sign up to a website that's called "Atheist Nexus", we kind of assume you're an atheist by default.