The problem is that real, paid for encyclopaedias used to use real, paid for experts in the field. Wikipedia repeatedly goes wrong when it insists on applying

The problem is that real, paid for encyclopaedias used to use real, paid for experts in the field. Wikipedia repeatedly goes wrong when it insists on applying processes that work with subject matter professionals to well-meaning amateurs. There's not really any way they've got for resolving the situation where the intersection of motivated people and those whose work qualifies for inclusion is empty. And yes, Nielsen is definitely notable. But give me Sibelius any day.