... Cobra that is a terrible idea OH GOD YES PLEASE DO IT

While not a member of PGC, since Crow's already made it to Cobra's list, he's more than welcome to go after him! ... Or other way round, because Crow would probably try to track him down and make him pay for that school incident (and others too I guess) if he had some sort of clue where to look aside from that you write guidebooks.