They do
Example: a company I knew (in Canada) displayed some fake invoices for "IP/Trademark registering" in Europe, of course the payment was optional, but if you don't pay attention it gets payed
Or, for that matter, debt collection agencies sending notices for expired debt, and having small-print at the bottom explaining that you are under no obligation to repay this, but if you respond and/or make a payment, they'll be able to go after you for larger amounts. (I have one on my desk. I might frame it for when I need to look at something and have a chuckle.)
One of the scams involves looking up WHOIS for thousands of domains and sending false domain renewal bank slips ("boletos"). Some will pay and never notice it's a scam.
What the article describes is a more sophisticated method using a malware though.