Robin Hanson Refutes Happiness Research
Me, I want to believe whatever is true even if that makes me unhappy. And with that attitude, I doubt attending church would make me happier.
More generally, even if happiness researchers found that on average “People who do X are happier than people who do not do X,” that does not prove that you should do X. Among the many sins of happiness research, it seems to me to deny the possibility of heterogeneous preferences.