Well when one challenges others who hold beliefs counter and perhaps even antagonistic to one's own, and one hears things one does not like some might say don't light the fire if you don't want heat.

But a sword with two edges can cut both ways.But a sword with two edges can cut both ways.

A-theists get quite used to people trying to change their beliefs, and also get used to people who are unsure of their own trying to use us as whetstones to sharpen their own ... :-)

I haven't been offended yet.... but when one is told that one is too immature and stupid to know anything, mainly because you don't hold the same beliefs, that can come very close...