Nobody else cares enough to ban him for minor infractions of really weirdly enforced rules.
If blocking specific moderators was possible, Phantom could easily keep posting at a casual pace if Hannibal didn't appear to consistently chase after him seeking ways to ban him in the uncared spasm that is Flood.
(Inb4 all moderator discussions are conducted by equivalent round table exchange/no one moderator makes final call/you are tin foil hat conspiracist because the moment I throw that insult it automatically invalidates your point without me having to present evidence - despite a mere accusation of localised bias convering it perfectly/etc ad nauseum, McFlurry of denials without ability to prove it beyond reasonable doubt.)