i'm moderator on another forum , and let's look what the admin said to us all when he chooses us :
-A moderator must show the GOOD exemple
-The moderator must HELP if someone ask ( or if not directly asked to him , ignore it )
-The moderator should NEVER flame any member
-The moderator must be sure that the thread he is closing/trashing isn't needed anymore
IMO , these are the ''basic'' for a moderator , who ever can't do that shouldn't be one , already , these ''basic rule'' for moderators should be for members that want to become a moderator and/or for members with good respect to others.
If a moderator can't handle the ''rules'' i said , then he shouldn't be up to be a moderator. A moderator flaming , cursing and not helping isn't good at all.
p.s i don't know about that moderator you'r talking about , i'm just stating fact and that could help you to keep him/demod him.