In other words, what happens to articles once they're posted? Will they be watered down or made inaccurate by someone with no relevant credentials? Wikipedians would argue that credentials are besides the point -- that anyone with a computer can police the encyclopedia by judging source material, sifting through edits and using a neutral tone to describe disputes. It's a dynamic that Sorin Matei, a communications professor at Purdue University, describes this way: "He who can sit for the longest in front of the computer is right."