Since rows and rows of text make for an unappealing appearance, even if the layout is flawless, wikis make use of images to illustrate the articles and make them a more appealing read. Images thus support the article, not the other way around. An excessive amount of images on a page is not a good thing - it suggests that the contributors have no standards or clue. Other undesirable situations regarding images that could occur are uploads of images of bad quality and uploads of images that are illegally taken.