One of the major problems that is that Wikipedia is not just an encyclopedia, but is also used as a news archive. These two different products have different audiences and should have different features. For example, an encyclopedia usually is a fact-checked summary of events, whereas a news archive is a stream of all news events, that doesn't require factchecking. Much of the complaints above arise from powerful groups in Wikipedia trying to control the fact-checking aspect of the site, when all most people need is the news archive part.

My site, Newslines, is an attempt to build a new archive without Wikipedia's biases. You may be interested in this analysis: http://newslines.org/blog/wikipedias-13-deadly-sins/