@4 I think the portmanteau in this case is the username, JonathanLivingstonNazgul69, a combination of Jonathan Livingston Seagull and LOTR's Nazgul. The 69 isn't really part of the portmanteau; it's just there because, obviously, someone else had already thought of it first, so the number is needed for differentiation and mutual funsies.
Doesn't read like the "real" A. Birch Steen. Reads like your standard angst-y teenager/Stranger writer doing a stoned impression of Rush Limbaugh. Bring back the real thing!
It was a great day for me when I finally pried A. Birch Steen's identity out of Tim Keck.
(But I always assumed that at some point A. Birch Steen became the Dread Pirate Roberts.)