The billboards were appealing to unbelievers, not protesting religion. I believe the message was:If you don't believe it, why are you wanting to protest it?
"Don't believe in God? You are not alone".
Doesnt sound like a protest to me.
In many places they do. But perhaps they wanted to reach out to some atheists who may be feeling alone or disincluded during the holiday season.As for the bill boards, the timing is an issue. If atheists feel so strongly about their non-beliefs, why don't they have these expensive bill boards throughout the year? Strange how it is only offensive during the Christmas Holiday season.