OK, but just to continue the analogy with Hari;
Suppose there was a journalist who was doing an expose of the porn industry (and the exploitation etc.) and, assuming the allegations against Hari were true, making up imaginary interviews or copying someone else's without proper acknowledgement.
Other journalists out there were printing stories about how wonderful the porn industry was (knowing full well it wasn't the truth), defamatory lies about campaigners against abuses within the porn industry. joke articles about celebrities shagging other celebs and wannabees, etc.
Would you still think it was worth going after the journalist who was at least trying to report the abuses in the porn industry, as opposed to the others who weren't even trying to provide a fair and accurate picture?
That's all I'm saying here.
Redsquirrel; you're right, I haven't read the Negri article. Maybe I'll get round to it.