Read on a skeptic board:
Being an atheist conveys no utility in the utilitarianistic sense. You can't use "being an atheist" to unlock any puzzles or solve any mysteries. Simply put, it isn't good for anything; it cannot be used.
I'm no utilitarian, but I think this person is getting everything backwards. If everything that is true is useful, then by definition atheism must be useful. But that's besides the point. "Useful" is a kind of subjective term when you're a collectivist. It might be more useful to society to force women to have X number of babies. It might be useful in society to force people into certain mating pairs. It might be useful to promote hoaxes like Christianity in order to keep people in line.
It's really not the point of atheism to "be useful." It's not a worldview. There are atheistic worldviews, but atheism in itself is just not believing in any gods. Not that it isn't useful to reject unproven or outrageous claims. Here's another use: it's called self-accountability. I would argue that it's better to use critical thinking than magical thinking. Not that it's required in not believing in Gods. But this fellow who suggested this nonsense thinks that atheism is a religion. If it were, I would say that materialism as a religion is much more useful and constructive than most religions. If it were a religion, invariably it would be a reverence for reason, reality, science, The World, life, and freedom of thought. Much better than death and hatred of the self.
Unfortunately, it's not. Fortunately, atheists are free to have worldviews that are constructive.
Thanks for listening.