For the record, that wasn't my point of view and I also said I'm personally against it, but my word is not gospel. Fashion is what you want it to be.
My personal pet peeve is when someone's entire wardrobe is sports related. All polos have a steelers/pirates/pens logo. They have sweaters with pens logos. It's okay to leave fandom in the heart and dress up w/o a sports logo.
But if you are wearing jeans and a jersey and it isn't gameday, I personally shake my head and chuckle.
I got some good laughs looking through some x-gen game day booklets. I would recommend making a day of it and going through anything you've kept. Some amazing ticket stubs, memorabilia, etc. Just great stuff. If you find anything unique, let us know.