I call BS on the comment "the rest are tolerant".
OK. I disagree. I am willing to bet, both statistically and quantitatively, there are more Tiger fans in Lafayette than there are Cajun fans in Baton Rouge. I would also bet that most of the "focus" on attitudes and impressions come from the most vocal minority, which in both cities happen to be the die hard haters.
Personally, I know a vast majority of UL fans that are not "die hard haters". You just don't hear them vocalizing about how much they don't hate LSU.
Loud minority trumps quiet majority on the impression stand point. I've had bad experiences with LSU fans in the past. I've also had good ones but I find I have to think harder to remember all the good ones than I do the bad ones and I can honestly say the good and/or non-eventful experienced far outnumber the bad.