I think that time, resources and talent should be put tobetter use.
The question would be, what do we get from such messages?
I personally could not care less if someone wore a t-shirt saying "Jesus is gay" or "Atheists are idiots", but what is the point of provokation? Is that what critical thinking is all about? Woudl we proove anything other than finding out that there are more sensitive and agressive people around than we may think?
I think that atheism as an ideolgogy and a way of living can help people see the world without the blurring lense of religion, but without having to prove some of those who oppose atheism right. I think that reason, logic, and decency can be better tools to persuade people to stop believing in truculent stories told by interested parties centuries ago.