For example. What is Mysterology? Click the link to find out. Why am I creating links with the non-word Mysterology? Some of my pages are #3 for this word right now in Google. This great optimization feat was achieved because there are not many pages that use this word listed in Google. But I am not doing to prove I am an SEO magician. I am doing it to check a Search Engine Optimization (SEO) Superstition about how search engines decide on which pages to list first for a keyword. This particular one is Irrelevant link anchor text hurts page positioning.
Of course, if your page is about magic wands, you should not be linking to it with hypertext "gremlins." But what if you have set up a nice magic wands page which is now ranked number 1 in searches for magic wands. Harry Potter and Hermione get their wands from your site. All over Middle Earth, all the right thinking hobbits, munchkins, elves and goblins have linked to your page with keyword magic wands. You are all set to live happily ever after, but your greedy and evil competitor, Voldemort or whatever, sets up 20,000 links to that page with keyword "Bad Gremlins" in the hypertext. Is that going to ruin your standing as #1 purveyor of magic wands in the Middle Earth Internet search world?
Double double, toil and trouble, cauldron boil and cauldron bubble! The oracle's answer so far, is that if you link to a page with irrelevant text, a mighty empire will be destroyed. The high priiests of Google and Yahoogle tell us that all will be well, we mustn't fret. Put your faith in organic optimization, whatever that means. We hope to have a better answer real soon now. If you believe that science took all the beauty out of the world, you won't like this experiment.