That's kind of a can of worms. On one hand, you probably wouldn't be noticed for not suing people for the name. No one would really have the opportunity to ap

That's kind of a can of worms. On one hand, you probably wouldn't be noticed for not suing people for the name. No one would really have the opportunity to appreciate your benign decision to not engage an exclusivity to your trademark. On the other hand, if you were so benign, then one day another magazine comes along, called "New Entrepreneur", and you try to defend yourself - only to find your case thrown out when they can prove you routinely don't defend your trademark. But then again, doesn't that lead to another point? You can defend that you don't seek to have the trademark ubiquitously across industries, just in the magazine and publication industry. Or is trademark law so sweeping that a business is unable to have a trademark in only the practicing industry? (If so, Square & Square Enix come to mind as outliers from this example.)