Wikipedia:Citation needed

Example: 87% of statistics are made up on the spot.

A "citation needed" tag is never, in itself, an "improvement" to an article: it is nothing more or less than a request for another editor to verify a statement: a form of communication between members of a collaborative editing team. For the user of the encyclopedia however it is at best a somewhat cryptic distraction; although it may alert an experienced user to a problem with the veracity of a particular statement. Tags that remain in place for months or years form an ever —this is a problem in itself.

Before adding a tag, at least consider the following alternatives, one of which may prove much more constructive:

At the moment, there are over 319,156 articles with "Citation needed" statements. You can browse the whole list of these articles at Category:All articles with unsourced statements.

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