I don't understand the author's criticism of anonymity. To me it's the best way to receive criticism - a faceless wall that tells you what you need to be told.

I don't understand the author's criticism of anonymity. To me it's the best way to receive criticism - a faceless wall that tells you what you need to be told. Sure, the power tends to be abused for cruel ad-hom attacks, but they're unsupported by weight of authority, so they tend to look weak.