The "pessimists" blame the Bills in some capacity. A particular player like Trent last season. Or TO not trying for example. Or ****ty coaching, decent players not wanting to live in Buffalo, Ralph being cheap and so on.
The "optimists" tend to blame bad luck, injuries, the refs being biased (if you don't think this is true read some threads from last season, they were an eye opener), the media hating Buffalo, the NFL wanting to move the Bills out of Buffalo, Ralph for the Toronto series and so on.
The only common ground seems to be blaming Mr. Wilson.
At least that's what I remember from seasons past.