Definitely a scam I imagine. As I mentioned, a bunch of those accounts look like they're all made by one person. They probably just take a shotgun approach, take what money they can from a buyer, burn the accounts and make some more. It's not just maps though apparently, it seems to be common on the site with other art too.

One of the funniest is the person who has ripped the official Skyrim map and added a watermark saying it was designed by them. Like, at least put in a little effort!