Don't worry about offending people in LA about hating LA. Apparently a lot of people hate LA. I hear it all of the time. It does not bother me.

I just can't understand why so many people keep moving here.

I can think of many places I would like to live in for a couple of years but I don't think I would want to live any where else but LA.

As for the Orange County thing. I think of it as part of the general LA area but don't say that to the people of Orange County. They don't like LA either (well most don't).