Selling UPC codes?

My father is retired and was chatting with some guys at his barber shop, when another retired guy came in and started talking about how he sells barcodes (UPC codes) and makes between $300-$400 USD with each sale. Has anyone ever heard of this? Is it BS?

submitted by /u/jamesgamble
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source https://www.reddit.com/r/beermoney/comments/dpru2v/selling_upc_codes/