The gap between 'Joe Chucklefuck' and the lead developer for glibc is wide enough to fit a whole lot of people who can triage a bug without necessarily being skilled (or interested) enough to submit patches.
I think describing the phenomenon as 'noise' is reasonable. You find a moderate number of answers with a reasonable degree of certainty as to their accuracy and a large number of answers that are just whatever came to mind first (these aren't necessarily provided by completely distinct groups of people). The result is a lot of almost-but-not-quite-related nonsense that drowns out the answers with any relevant content.
This probably isn't purely a problem of numbers, either. Even attempting to be helpful takes a certain amount of effort that naturally limits the impact of the former group at any particular instant. It's also easy (as evidenced by this very article) to take helpful information and render it non-helpful by repeating it without context.
I think describing the phenomenon as 'noise' is reasonable. You find a moderate number of answers with a reasonable degree of certainty as to their accuracy and a large number of answers that are just whatever came to mind first (these aren't necessarily provided by completely distinct groups of people). The result is a lot of almost-but-not-quite-related nonsense that drowns out the answers with any relevant content.
This probably isn't purely a problem of numbers, either. Even attempting to be helpful takes a certain amount of effort that naturally limits the impact of the former group at any particular instant. It's also easy (as evidenced by this very article) to take helpful information and render it non-helpful by repeating it without context.