Was pointed to have a look at the "Peterborough - Fail" thread on Brizzle City's forum.
It seems they're equally hated in other parts of the country, here's just a couple of choice quotes from City fans...
"Their Chairman is an Irish con man. Their Manager is akin to a turd (no disrespect meant to all the other turds out there). Please explain what is there to like about them ?"
"vile players vile fans vile manager vile chairman vile club I hope they get relegated"
"Didn't like them even before moving up here, they all seem to be strangely smug, arrogant and the place is horrendous too. Makes Northampton look like Knightsbridge. No wonder the locals dislike them."