None of the things you mentioned can ever prove a Coach is fake. Patterns DON'T line up along seams. Coach DOES NOT ALWAYS OR ONLY USE YKK ZIPPERS, AND A ZIPPER CAN'T PROVE ANYTHING. And Coach has used metal, leather AND plastic hangtags and they don't prove anything either since they can be removed and changed in a few seconds.
The creed looks fine and the Coach logo tag was added later. I don't see any problems. And whatever "guides' you're reading that are saying that patterns line up at the seams and all zippers must be YKK are full of misinformation and just plain lies. Please ignore them.
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