On Sun, 21 Feb 2010, Charles Matthews wrote:
I never understood, why does notability require a reliable source anyway?
Doesn't - urban myth put about by people with a kindergarten version of logical positivism. But no reliable sources means nothing can actually be said in an article that has any content. "X is famous for being famous" - we get round to deleting articles like that.
No reliable sources *for notability* doesn't mean that nothing can be said in the article. The restrictions on reliable sources for notability are stricter than the restrictions on reliable sources for article content. Notability requires that each individual source has significant coverage, and is limited to secondary sources only. Article content allows you to take information from multiple sources each of which only has a small amount of coverage, and it is not limited to secondary sources (in fact, under some circumstances you can even use material written by the subject).