Not so many community restrictions to coming out as an atheist as personal.
I have (hate that word "suffer") major social anxiety. Just like I hated talking about religion (besides the fact it didn't make sense) telling people, particularly family, that I'm atheist is just terrifying. I have a fear that something bad will happen if I come out: my mind will go blank, I'll go crazy (what ever that means) my wife will be hurt because we won't be "soulmates" I know they are all irrational thoughts, but that's anxiety for you.
Anyway, that's all for now.