Nonsense. It means content will be filtered through the lens of one or more individuals. The results vary dramatically. Mob-rule is one possibility. Yahoo Directory used to be a great example of mid-level of quality where it gave nice start and obscure stuff people overlooked. On high end, the link below shows Stanford Encyclopedia of Philosophy set a pretty awesome precedent for high-quality curation:

https://news.ycombinator.com/item?id=10266103