I really don’t agree. Much of Wikipedia has actually been reviewed by a crowd of reviewers. Each article is rated on its degree of completeness and whether it meets Wikipedia’s standards. You can see this on the “talk” page for each article. So if you are worried, only use “good” or featured articles. If someone makes a change to these articles, it’s looked at with very close scrutny.
For example, take a look at the “Peak oil” article.
“Peak oil has been listed as one of the Geography and places good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.”
In contrast, look at the “RFD-TV” article.
“|This article is within the scope of WikiProject Television, a collaborative effort to develop and improve Wikipedia articles about television programs. If you would like to participate, please visit the project page where you can join the discussion. To improve this article, please refer to the style guidelines for the type of work.||
| ??? |This article has not yet received a rating on the project’s quality scale.|
| ??? |This article has not yet received a rating on the project’s importance scale.|”
my two cents… I’ve been editing Wikipedia articles for over 10 years.