And so it is with great pleasure that I landed upon the shore of this gently satirical review of The Holy Blood and The Holy Grail. Read it and enjoy!
As for the rest of the Voynichian web, it is (sadly) pretty much uniformly humourless, with the joyous exception of the excellent Uncyclopedia Voynich Manuscript entry, which has been heavily updated since I mentioned it last year (though I'm pleased to see the "medieval VCR manual" gag is still there). Recommended!
PS: the answer to the question is (of course) "None, they like being in the dark."