Let me take some time to answer your points.
I'm not going to sit here and tell you that your experiences are not valid. I won't say that the
Necronomicon is evil and that nothing good can ever come from it. I can say that I've heard many experiences at variance with yours, but that is hardly convincing either way.
Taking on the role of John for a moment - he's not available - I might, however, suggest alternative interpretations. Many of the gods and beings in the
Necronomicon, such as Enki, might already be available in the Akashic record, or whatever you might want to call it, where they can be accessed. Perhaps only some parts of the book are flawed in some manner, and the rest can be worked with safely. I'm not the one for such arguments, however.
With regard to the question of efficacy, that in itself doesn't guarantee the accuracy of the material. After all, there have been people who have rebounded from horrible, life-threatening diseases after being put on sugar pills, succeeding in healing themselves through sheer will and belief. Likewise, the history of religion tells us of many ideas of dubious origin that nonetheless helped people to lead meaningful and powerful lives. An idea that has no basis in truth can often bear surprising fruit.
All of this might apply to our situation, and it might not. I only ask that it be considered.
Is the
Necronomicon dangerous? I will not comment in a magickal sense. Nonetheless, there are passages in the book, such as the one about the sword of Hubur, that are not part of
Necronomicon practice as most magicians perform it. As the book appears to me, for many different reasons, to be a modern creation, I then must ask whether publishing a passage promising power through human sacrifice was the best idea. The last widely-circulated magical manual to do that was the
Picatrix. If nothing else, the book is dangerous in the sense that it puts that idea into the minds of those who can use it to justify their actions.
I don't agree with the view that people who commit crimes based on the Necronomicon are "doing it wrong." I'm sorry, but it sounds too much like those people who say that a criminal who uses a belief to justify their deeds isn't a "real" X. It's a matter of the person's interpretation. If the
Necronomicon is a recent creation, as I believe it is, then the horrible actions carried out down through the centuries by readers of particular volumes should have been a warning not to include such material in the Necronomicon. Nonetheless, it is there.
As for the
Necronomicon as an evil book - I don't know if I'd call it such. I've collected a few such "evil" books in my time, and none of them exert a hideous and malign influence over me, or fly about the room, or any such thing. Nonetheless, an examination of the symbolism of the
Necronomicon indicates that the reader is not getting the whole story - the aglaophotis bit is proof enough. And if that is the case, we should be cautious.
As I hinted earlier, I have found another case of this.