haha, the site says:
Not everyone is in it for the profit. Believe it or not, some event goers have season tickets or single event tickets they cannot attend for a host of reasons, and are simply looking to recover upon their purchase.
And yet you sell your tickets for face value, which amounts to $80 profit per game considering you pay season ticket holder price. If you attend 15 games and flip the rest, that means you profit $2,000 above what you pay as a season ticket holder for those 27 games. Nothing wrong selling at face value, and for some games that's awesome, but if you say you aren't in it for the profit why not sell them at your cost?