The researches measured the ratio of positive to negative tweets in the 3 days following games last season and found that the Raiders, Patriots & Steelers fanbases were the most volatile and unstable in the NFL last season.
As they point out however, the relative tranquility of Eagles fans last season may have been largely due to falling expectations as the season wore on.
"My gut tells me that their expectations changed after the first few games," Tripathi said. "They started caring about the next season more than what's happening right now."
It's certainly true that it's harder to get really upset at games you were likely to lose anyway. Unless you're a Raiders fan evidently.
Here's the full ranking in a graphic from the Wall Street Journal.