Joel Leyden, owner and editor of the Israel News Agency, and once a registered Wikipedia User, who went by the handle Israelbeach, hasn't much positive to say about the behavior at Wikipedia:
One realizes after being inside Wikipedia, behind the many so-called facts and figures, that there are networks within a network. Some good, some bad. A few respond with vicious relentless assaults that would make the Mafia proud. [Go to the article >>>]
Leyden is not exactly a disinterested reporter. He is a father's rights advocate who set out to assure that Wikipedia also presented that perspective in its coverage of related issues. The details are a bit fuzzy but many of his observations go beyond his own personal situation and are confirmed by countless others.