Yes, there are problems with some aspects of Wikipedia, as there would be with a massive site like that. In general, however, it's a quick resource for basic information. I think it doesn't require a mental heavyweight to understand that naturalnews.com is a shill website for right-wing special interests who are trying to build their policital base with anti-vaxers. Anti-vax believers are perhaps the most loyal supporters of the radical repuglicans, and will stop at nothing to excuse their actions with evidence from anti-science websites like naturalnews.com. Say what you will about Wikipedia, but naturalnews.com, Sinclaire, Fox, InfoWars, Breitbard, and many other right-wing sites are trying to get people to question facts and science.