When I was there, Directors were still above the Real Googler Line, but it may have moved up in the time since then. Also, he lives in Massachusetts, which means he'll only get the work that MTV doesn't want (unless he moves). Finally, with his visibility, he's going to get a lot of prank Perf and his manager is going to have a hard time promoting him because of that.
Anyone can write unsolicited reviews for anyone, with an option of it being visible only to the manager (aka graffiti in the executive washroom).
If someone gets pissed off about his transhumanism (especially if he starts talking about the Singularity on eng-misc, or if he has questions related to assigning Real Names to AIs, or if someone just doesn't like Canada and won't forgive him for his work with Our Lady Peace in 2000-1) and decides to "Perf" him, he could be in trouble.
If someone like Ray Kurzweil ends up on a PIP I will call the fabric of the universe broken.