As someone from Portland, Maine, I always get a little miffed when people don't specify that this is Portland, Oregon. Yeah, Portland, Oregon's metro area is about 4x the size of that of Maine's largest city, but it's not like it's an order of magnitude or anything. Maybe I'm just jealous that there's more going on there than here. :(
It's like somebody in Moscow, Idaho getting upset that people don't refer to it as Moscow, Russia. Face it, Portland, Oregon is the real Portland.
Moscow, Russia has 11 million people. Moscow, Idaho has 23,000. I know you're probably being flippant, but I hardly think that's a fair analogy.
Besides, we had the name first. :)