Vordrak did the most despicable thing humanly possible: He started actively going after Null's family, friends, and pretty much everyone who was even tangentially involved in his life. Vordrak threatened to ruin them, harassed them at their jobs, spread slander about every single one of them, and overstepped whatever line of good taste you possibly could have conceived of. Null was not alone, either: Oliver and several other members of the Autistic Legion of Doom tried similar scorched-earth tactics against everyone from Wiki staffers to the mods of minor subforums. Eventually, Vordrak pushed things too far: Null shut down the board entirely, and for some time, it looked like Vordy had won. For a while, the Farms went dark, and Lolcows around the internet rejoiced because the terrible enemy was now dead.
....But Autism will never eternal lie, and the Farms merely shutting its doors was not good enough for Vordrak. Vordrak wanted to ensure that not only was the Farms down, but that he could stop it from coming back. He was demanding Null, among other things, turn over the user database for the entire forum, destroy all thread backups, and publicly apologize for his offenses against him. Sam wanted nothing less than the fucking site fucking gone, and more importantly, go nuclear against anyone who tried to fork it.
The thing is, there's only so far you can push a man. When he demanded capitulation from Null as a condition to stop his attacks against Null's family, Oliver at the time was stepping up his offensives against the other mods and admins, myself and several others included. Whatever Null's flaws may be as an administrator, he was not about to negotiate further with an honest-to-god terrorist, and so Null cut all ties with his old life and went walkabout.
The Farms came back online soonafter. Had he held back, and just been satisfied with the Farms getting deleted, he'd probably have held onto a victory the likes of which the Rat King still fantasizes about for at least another few months. Unfortunately for him, Null is a man of principle and has now set things up that even were Vordrak to arrange for an assassin to flat-out murder him, the Farms would stay up.