Chris Anderson's decision to post online the email addresses of PRs who decided that the editor-of-chief of a heavily staffed magazine was the obvious place to start with getting a launch covered made sure his anguish got noticed. It drew someone else who revealed that they have started to quietly blacklist PR emails. There could be a lot more of those people.
In the distance, a low rumble accompanies the law of unintended consequences grinding into action.
Here is the problem. People who think bypassing section editors to pitch the editor-in-chief of any book using his or her named email address aren't suddenly going to get a clue because their own email addresses are now online ready for any passing spam harvester. However, what they will be aware of is a large number of messages underneath the original post saying: "Pick up the phone, build a relationship."
What they will understand is the first bit: "Pick up the phone..." I can say with certainty that a dull, misdirected pitch delivered by email is ten times worse delivered by phone. Emails are easy to kill. Phone calls are another matter.