I've never given a lot of weight to wikipedia's political/cult/religious overtones. They're a site with pages, and I run a site with pages. What frustrates me to an extreme is seeing pages I KNOW are extremely valid to a query buried by G, and essentially a Wikipedia placeholder showing up as the #1 or #2 result.
What is particularly infuriating though is seeing my content re-phrased and re-worded on Wikipedia. Some of that data took days, months and even YEARS to compile.