Even though Peter Lamborn Wilson/Hakim Bey does not come out and say it, though he does come close on a few occasions, I have always considered him to be the second primary "thealogian," or "atheologian," or Discordianism thinker (Thornley and Hill aside). Of course RAW is the other for this period... you know, the pre-internet boom of Discordian texts. He did a few lecture tours with RAW, published reviews of his work (and vice versa), and wrote him a lovely obit in 5th Estate. [http://theanarchistlibrary.org/library/peter-lamborn-wilson-liquor-and-weed-for-him-were-bardic-fuel-peter-lamborn-wilson-s-obituary-f]
The early 1961-1964 Discordian documents stress the importance of non-canonical Discordian works and authors, who they dub "Compilers of Truth-Lay". It seems to me that TAZ, like so many other works (esp. Terry Southern's The Magic Christian) are rightfully placed on Discordian sites as Discordian in nature.
ya dig?