This is a sonar ping bouncing off a person closely intermeshed with communities HN readers care about. It casts into relief certain cultural values and tendencies of our community, e.g. our discomfort with moral ambiguity (Bill Gates/Uber/prosecutors/Comcast tend to be judged as scumbag or not in the top comment, with the nuance being expanded upon in child comments versus the other way around).
Given his god-like status in the VC community -- and of the company he founded, which until recently has boasted of its "continuing relationship" with Mr. Perkins -- it's more than appropriate:
http://www.kpcb.com/teams/partners-emeriti
This stupid letter to the editor has (a) made the news elsewhere (b) been explicitly disowned by his firm: "Tom Perkins has not been involved in KPCB in years. We were shocked by his views expressed today in the WSJ and do not agree."
Regarding (a), the news contains lots of Stupid Celebrity Stories, but that's the kind of thing I look at HN to get away from.