This question in particular caught my attention. I think it's been well established at this point that CSS questions involving code belong on SO so I am unsure why it was migrated here. What should we do when something like this occurs?
You could bounce it back with apologies and a comment linking to this question: What is the status of HTML/CSS layout questions on SO?
Unless you're aware of a way of contacting the moderator there who bounced it here, there's probably not much more you can do.