Well, unless I am missing something, no. I do not feel his infractions were earned. If his conduct bothered you so much the sensible thing would have been to hand the matter to someone else. It looks like a vendetta now, whether it is or not. Infraction for a signature that had been there for days? Infraction for posting on a thread in a manner you considered part of a PM argument?
If life gives you lemons ask for Tequila
Only sad bastards seek gratification from signatures