You're the one who's making an "edit war" out of this, friend.  It doesn't matter how long you've lived in whatever region; that doesn't mean you know anything about the dialect that's spoken there.  No offense, that's just how it is.  I lived in the Midland for most of my life, but that doesn't mean I know squat about the dialect spoken there.  I'm sure there are linguists who know way more than I do about the Midland dialect.  I can speak it, but that doesn't mean I know much about it.  People don't seem to understand this concept.  Also, personal experience doesn't mean anything on Wikipedia, no matter how true or false it is.  It's called "original research" here.  There's no need to get angry about this stuff; it's just linguistics; it's not like anyone insulted your mother or your cat or whatever you hold dear.  Keep in mind also that it is possible to live in a region one's entire life and not speak with the accent associated with that region, i.e., some people in the South have accents that are more similar to those of the West or Midland.  The same might be true for the Inland North.  Read this.  Specifically read p. 139 where it says Transitional Cities.  It explains this a little bit, though not as much as I would want it to.  Maybe you can find a more in depth explanation elsewhere, like in the real Atlas of North American English.  That's all I have to say.