Wiki's OK when it's not used as a primary source -- especially if the subject bears even remotely on the political. Generally, you had best get four or five other sources to corroborate Wiki before you can trust it.
Definitely agree with that... The links at the bottom of the entries, are usually a good place to start research as well. But, relying on anything like “WikiANswers” or “YahooAnswers”, or any of the like, IMHO, is reckless, and lazy...
Like you said, if it concerns politics — AT ALL — chances are the information you read there (besides hard bio facts - DOB, etc...) are completely twisted and biased.