@erestor-
I have serious doubts that Osama Bin Laden attacked the United States because someone was rude to him on the internet. I also have serious reservations that someone who suggests that has any right to call anyone else a moron, but I'll give you the benefit of the doubt and assume you were just using the deaths of thousands of people (including relatives of another, much kinder member on this forum) as a joke. (BTW, maybe you want to include on your guide to respecting people, right after don't stereotype, "Tell random people you've never met that their uncle deserved to die because he was American". I can tell I have a lot to learn from you about respect)
In any case, your question was already answered. grafikal may have been a little more emphatic than necessary about his objection to playing games on mobile phones, but I can't see how his response lacked respect. I cannot see how anyone's dignity would be offended by that response.