Oh, I can totally see why someone with zero understanding of how credit card fraud works would attempt and get caught doing this.

They simply wouldn't achieve anything. They wouldn't get enough cards to be able to sell them, nor would they be able to cash out this information.

I'm sure there is zero overlap between people doing this and people actually profiting from (or causing losses with) credit card fraud.

If they actually knew what to do with such information, they'd just be buying it for a couple of dollars a piece.