This is a good recommendation, and it should be taken seriously. For advertising-based business/trade mags that have a fixed, non-paid subscription base, publishers may choose to remove from their lists those at certain postal codes or cities with a simple purge -- much like how they purge vague job titles or those who borderline apply -- when under budget crunches. Nowadays, people are looking for any excuse to cut costs, and this does rural communities no favors.