I think I know now why Wikipedia sucks.
→[More:]It's not because of the plagiarism, or because it's so easy to abuse, and not even because the entries lack style. It's because the people who create and maintain these articles cannot tell the relevant from the irrelevant. All the articles (of course I'm generalizing here, but I do think it's true) contain lots of information that doesn't really belong in that article, even though it's somewhat related to the topic at hand. It's as if every hyperlink was a tiny canal between two (somehow related) articles: if you create a link to another article, they will soon start contaminating each other. Information will start oozing from one article to the other, even though it would be much better for it to stay where it belongs. The end result is quite predictable: if you try to put everything in one article, you'll end up with nothing.