Which Wiki?

I have to admit I have gone to Wikipedia a time or two for a quick answer. I realize anyone can add information there so I am careful about what answers to give to library patrons. It is fast and easy and that's what we all want these days. As far as community trust, I am basically a trusting person so I always like to believe that everyone is fair and trusting but alas, I know that is not true. We have to be cautious and I do believe in trusting my own instincts. Does this "thing" make any sense?