In fact most scams target the stupid. For many years, email scams specifically included misspellings and grammar mistakes. It was a way of weeding out people who might catch on that one wasn't really a Nigerian Prince or not really Bill Gates.People fall vicitm to all manner of stupid internet scams every hour. I don’t see the fact that he’s scamming stupid people as exculpatory.
I am beginning to worry that many of us would defend the right of the Nigerian Prince to scam.