if MNH comes back on 2nd October and starts doing the same stuff again, will it take another few months for this to be acted upon?
In Wik's case we had a "parole" ruling authorising sysops to implement 24 hour bans in certain cases. Such a thing may be done for Mr. N-H (and Irismeister, as it happens) - the "certain cases" being personal attacks and similar unpleasantness. Would this resolve your concern?
-Martin