The ban probably happened because people kept trying to recreate the entry after it was deleted. I don't know how Wikipedia works moderation-wise, so I'm just guessing about that. The entries I saw never contained more than a few sentences. But apparently the final ruling was, "He's not worthy."
What sparked the initial creation of that entry was most likely a link to my polyphasic sleep logs from this Wikipedia page:
Polyphasic sleep - Wikipedia, the free encyclopedia
Those sleep logs remain incredibly popular to this day, and I still receive questions about polyphasic sleep every week, even though I stopped doing it in April.