Agnostics piss me off because they're either totally ignorant about the subject, or they're fucking elitist. "You can't KNOW FOR SURE that my cat didn't create the universe yesterday and implant all our memories. You just BELIEVE it didn't, so you're no better than theists."
Congratulations assholes, you've realized that something unfalsifiable is unknowable. The rest of us who, you know, _understand science_, already know this painfully obvious fact. These simply aren't the gods we're talking about when we call ourselves atheists.
Gods that are unfalsifiable have no effect on the universe, so it's nonsense to even wonder whether or not they exist. It's not a knowable thing. I call myself an atheist because I consider the gods of mainstream religions to be not only falsifiable, but already falsified by science.