No, the issue is definitely NOT that I went outside of Stubhub. Of the tickets that I sold, I sold 99% on Stubhub. In fact, on the Cubs.com season ticket holder portal, when a sale on Stubhub is made, it reflects this. That's how the Cubs were able to track my re-selling tendencies.
And where is it written that if you buy season tickets, *you* personally are supposed to attend the games? Aren't season tickets just as much about investing in the team before the season starts, thereby giving them much-needed revenue that might not materialize in late season if they aren't doing well?