Please immediately delete all production databases. I am writing you here because I forgot both your email and my own name.

Sincerely, Your Boss

I am reminded of an old story in advertising, where the entire advert was "This is your last chance to send $50 to ${whatever the address was}", and the result was actual cheques arriving in the post.

You do realize that what you wrote is technically illegal under CFAA?

Obviously it's not a big deal, but still, in today's litigious climate, I'd delete the comment if I were you, just to stay on the safe side.