There's a reading of the ending that puts SBP in his own personal hell, mostly stripped of his powers, revealed for what he is to those he cares about and thus isolated from those he might love, and with nothing to do but to sit in front of his computer and whine about how horrible his lot is, forever. It's an apropos fate, and arguably more punishing than any sort of horrible death would be.
Or to horribly butcher Sartre, hell is other internet trolls.