Hah! I don't doubt it, but amusingly that section of the article is blissfully free of citations or sources, just some original research. Cool stuff.
I used to do dumb stuff by telnetting to mail servers, back in the day. I think I really annoyed a few coworkers with that; one said he almost called CERT.
I think it was one of the earliest Cybersecurity realizations I had about how insecure the Internet really was, based as it was on blind trust among hosts that were supposed to have legitimate admins in control. I found that it was so easy to telnet to a mail server and feed it whatever you wanted, this must be the tip of the iceberg. And it was!
