
Wikipedia, the online encyclopedia that anyone can edit, puts banners at the top of certain articles to alert the reader to potential issues.
There are thousands of them: “This article is a stub,” “This article is written like a résumé,” “This article needs additional citations.” They’re little notices that let you know that an article covers a rapidly-evolving new subject, or perhaps that it contains too many buzzwords or weasel words, or that it lacks information about some crucial aspect of the topic at hand.