This question was posted on MO about not being able to post on math.SE. While MO wasn't the right place for the question, I have to wonder what is. New users who are experiencing difficulty using math.SE can't post about it on meta, so where do they turn? The only thing I can think of is that they have to figure out that it is possible for them to contact the moderators, but nowhere is it explicitly described how to do this. Maybe something should be added to the FAQ.