Why do people with the same opinion join a group when the focus of the group is not that opinion? MMOC and the large amount of atheists despite the site being for the discussion of World of Warcraft. What brings them together and causes a minority group to be the majority within the group they joined?
Note: I am not talking about religion specifically. Or MMOC. What causes certain opinions to became the majority within certain groups when the group itself is not about those opinions?