The only conspiracy theory I accept

Postmaster Malown was a ghost in Vanilla Stratholme before he was in the Wrath dungeon Culling of Stratholme, and his name is a reference to the NBA player Karl "The Mailman" Malone. 

Which is also a coincidence since that is how most people assumed he got the name with a song titled "White Iverson". He claims it was just a name generator that got him Malone however. Interesting how that is.