I fully respect Ms. Diva’s right to issue whatever grand edicts she wants, however, I believe her reasoning in this thread to be flawed, and wish to express my opinion. While I neither expect or demand any action to be taken, perhaps by expressing a (seemingly) commonly-held view, my brilliant oratory will effect violent revolution. But probably not.
Many people of great talent and skill indeed earn their livelihood by performing magic tricks, however, with rare exception, the methods for performing all such tricks are known. As mentioned by pulykamell, explanations for most common magic tricks can be found in books in your local library, and on the Internet. TubaDiva seems to agree that this is the case, and that while tricks themselves are not copyrightable, explanations of them are. However, Tuba deleted a (presumably) original explanation by Trigonal Planar, on what I assume were ethical grounds.
I submit that explaining magic tricks is not unethical. Allow me to make an analogy. As a student of film, I have studied many techniques for creating special effects. Special effects are similar to magic tricks – they make you see something not normally possible, and the way they work is often hidden. Many people earn money by creating special effects and inventing new methods to do so (many of which are patented.) However, no one has ever objected to explanations of how special effects are created. I could go into great detail about bullet squibs, bluescreens and pyrotechnics, and I’m sure many people would find it interesting. Knowing how an effect is created does not diminish from the enoyment of an artfully executed effect, even if it’s a simple car explosion that’s been done a billion times before.
Books upon books have been written about special effects techniques, and people have posted GQ’s about them here, and they have been answered. A film is copyrightable, and effects devices and techniques used in a film may be patented, and a particular description of those things may be copyrighted, but no one would object to a wholly original description posted in GQ.
As a very, very, very amateur and unskilled student of magic, I feel that precisely the same principle applies to magic tricks. The only difference is cultural; many magicians have a strict code about revealing secrets. 99% of this is simply showmanship. The truth is, there are no more secrets in magic than there are in movies. Both can make people dissapear. It’s the context and performance that makes a magic show or movie enjoyable as art, whether or not you know how it’s done.
Therefore, I believe that instructions for performing magic tricks should be allowed on the board. Common courtesy would dictate that spoiler warnings be provided for people who do not want to know.