What do Mileage Runners do?

Wired.com has a great article on mileage runners.  This one was written back in 2007, but it still holds true for today. Mileage runners, people who game the system by finding the cheapest possible flight with the maximum number of connections in order to gain the maximum number of miles for the least amount of money.  For most of the hardcore mileage runners, the fun is simply gaming the system, it's like a very elaborate problem-solving puzzle with hints from the forums over at FlyerTalk.