Well you are going to get that from every fan base. The problem is there are going to be the outliers that are on the very edge of both sides of it.
My perspective:
Bad fan: "We didn't win the superbowl. Everyone should be fired. Allen sucks. Gabe sucks. Diggs sucks. McDermott sucks. Beane sucks"
Good fan: "This team did a lot this year and overcame a bunch of injuries and emotional obstacles."
Neutral fan: "they were good for most of the time but they don't have what it takes right now. Something needs to change."
You will see 80% neutral, 10% bad and 10% good. That's the nature of it. The problem is on a message board you are always going to see that 20% (especially the negative 10%) highlight the board just because people don't want to hear the bad. And I think the people that "dictate by supporting good and bad" leave more of that 80% in their comments than the people posting "Fire this guy, I'm right, he sucks and you can't say anything otherwise"