I don't receive 30 a month as the guy in this article does, but absolutely get one or two a week (usually from recruiters or people "from Microsoft" who've spotted an issue with my computer).
"You mean Microsoft?"
"No, Windows"
"Microsoft Windows?"
"Yes"
"So you're from Microsoft then?"
"No, Windows"
"You know this might be a more convincing scam if you didn't try to make out you're my operating system?"
...and so on...