Sure, but in this case the moderators were clearly wrong for closing the the question for being 'too localised': "It is only relevant to a small geographic are

Sure, but in this case the moderators were clearly wrong for closing the the question for being 'too localised': "It is only relevant to a small geographic area". No, the question is just as relevant in Louisiana, Lithuania and Liberia. "It is only relevant to a specific moment in time". No, the question is just as relevant now as it was 50 years ago and will be in 50 years. "It is an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet". No, it an extraordinarily broad mathematical question that clearly has appeal to a very large, worldwide audience. In western society there are almost always checks on the use of power. A policeman was too violent when making an arrest? He can be reprimanded or fired. Politician accepted a bribe? He could be locked up. Businessmen colluded to keep prices high? They could be fined heavily. The 'justice' of our system is so pervasive that we take it for granted, which means it can be very frustrating to experience the unjust use of power without possibility of redress. This case is a minor example, but it must feel like a slap in the face to the person who posted this question on Stack Exchange.