Wikipedia:Extracting the meaning of significant coverage

Frequently in AfDs participants post a large amount of sources (generally ones that are reliable) and opine a 'keep' argument. That is good. But sometimes when participants do this a large amount of those sources are merely trivial mentions, which do not constitute significant coverage. The general notability guideline states:

Significant coverage is more than a trivial mention

It also provides an example to back this up:

Martin Walker's statement, in a newspaper article about Bill Clinton, that "In high school, he was part of a jazz band called Three Blind Mice" is plainly a trivial mention of that band.

It can sometimes be easy to forget that significant coverage is needed when you are new to deletion discussions.