Most of the "hate" is just as superficial as programmers teasing people that use other languages, or sysadmins trash talking other operating systems. I can see the Walt Whitman bridge from the end of my road, and I have made friends with plenty of people from North, and Central Jersey.

...Another fun one is to pretend that Central Jersey doesn't exist, or to claim to be a proud Shoobie (or Benny) to the shore people :-)