You've got a discussion going, talking about why you're an atheist, or what atheism should mean to the community, or some such topic that is dealing with our ideas and society, and some smug wanker comes along and announces that "Atheism means you lack a belief in gods. Nothing more. Quit trying to add meaning to the term."In other words, a "dictionary atheist" is not a person who defines atheism in a particular way. A Dictionary Atheist is someone who intrusively and dogmatically insists on his particular definition, someone who limits and restricts the definition of atheism.
There's a time and a place for a narrow dictionary definition of atheism, usually when theists are making broad, unsupported generalizations about all atheists. We are a diverse group, and the only thing you can say about all of us is that we all — for a variety of reasons and with a variety of intellectual consequences — do not hold the belief that any god exists. But this definition serves only one purpose: to say what we all at minimum have in common. After that, the dictionary definition is useless.
Essentially, Myers is arguing against a narrow, blinkered view of atheism among atheists. More importantly, he's arguing against the dogmatic assertion of that narrow, blinkered view:
My main point is that one general flaw in many atheists is a lack of appreciation for why they find themselves comfortable with that label, and it always lies in a set of sometimes unexamined working metrics for how the world works.If you want to argue that atheism really is nothing more than the lack of belief in God, that there cannot be anything more to atheism, there cannot be anything more interesting to say about each and every atheist than that he or she simply lacks some belief, then fine: argue the point. Otherwise, you are simply not addressing Myers position; you are simply sensing that you might somehow disagree with him and reacting unfavorably. You're supposed to be smarter and more honest than the average bear. Please make an effort to live up to expectations.