It's because its in the faq and how to section. I once placed a response to a faq and how to article, and was surprised it was moderated, but, if one looks (which I didn't), it does mention that posts in that section are moderated.
Probably slipped through the cracks. New users are always moderated of course. Especially in the morning we usually have a list of posts in the queue. Someone probably clicked through them without realizing it was in the Howto section. In any case, the post has been moved as it's not supposed to be there.