Allen and Lindner ticked off a lot of fans. Those fans have to be won back.
As recent as 2000, the Reds pulled in about 2.5 or 2.6 million (I can't remember the exact number). Some of that was from Jr, but some of it was due to the fact that the team almost made the playoffs in 1999, and it appeared that they were finally going to try to win the division.
Even though Neagle was dumped midseason while the team was in 2nd place, they still got a strong attendence year.
Since then, IIRC, we haven't even had a .500 team. Maybe I'm wrong, but the product has been horrible the last 10 years. I'm going to be honest. If someone gave me free seats for my entire family for this weekend, I am not sure I would accept them and drive down to see the game. I have a lot more fun watching minor league ball live. When the team puts a better product on the field, then I'll make the commitment to blow an entire day to drive down to Cincy and watch them. I'm seeing some signs of life in this franchise, but it's going to take more to win me back.