On the Civil War list, we call it Cranky Season... the time of year between about November and about February or March, when there aren't too many events to go to. People get bored and antsy and start jumping down each other's throats for the silliest things.Also known as Cabin Fever, I reckon.
Sure, sometimes people aren't so nice to each other. But that's what happens when you get several hundred people from all over the world together.
It ain't nothin but a thang.