Lots of people commenting that the text of the email seems amateurish. Perhaps it’s exactly as it should be, but you don’t understand its purpose. Maybe they wanted this to be discussed on netsec forums everywhere, so that Google searches for “Vinny Troia” always lead back to discussion about this email, framing him as a cyber criminal and outranking legitimate posts about or by him - an online identity assassination. They needed the email to set off some alarm bells so that it would pique enough interest to be widely discussed. They appear to have widely targeted the email addresses of system admins. I’m fairly certain this was their intention.

Also, does it strike anyone else as odd that the account that posted this to HN was created hours ago, for the sole purpose of starting this thread?