I think you're taking Gopheritnow's comments too personally, or specifically, to Minnesota. Generally, he is correct. I read some other online Big Ten team's forums here and there and I participated in another pro team forum (not a Minnesota team) for awhile. On the whole, most sports fan forums are pretty similar (filled with complaints, contentious, and fairly dreary on the whole). They're similar to political forums actually.
If you have a losing team, people will be unhappy. If you have an average team, people will be unhappy. Even if you have a good team, people will complain that they aren't better and will still bitch relentlessly during losses.