Never knew you were a mod on the server - or do you jst mean in general?
I know off the top of my head;
/kick [name]
/ban [name]
/ban-ip [ip]
/gamemode [name] 0/1
/give [name] [ID] [amount]
/op/deop [name]
/tp [name] [target]
/stop
I think /pardon [name] unbans people and to save the world it's /save-all or /save all
I think these would be all you'd need to be a decent mod.
Yeah, I used to be a mod on the server way back. Don't remember when you joined the server though, so I'm not sure if I was one when you played.
Being a mod is more than simply banning and kicking. Or was last time I was one.
You need to be able to settle disputes which usually involve trying to figure out if person A was the one who destroyed/stole person B's awesome giant golden smiley face or if it was persons C, D, or E. Luckily there are tools for this that allow you look back at a specific block's history and see what modifications (Such as placing, removing, or interacting) have been done to it in the past few days/weeks, by whom, and at what time. Before those tools it was all but impossible. Just ask XKira the Portal Placer.
Nobody ever kicks anybody because someone who is kicked always just comes back anyway, so banning is used more often, but still rarely due to it not being an open server, and there has to be a legit reason.
There isn't any real reason to have many mods due to the small-ish player base, which was why I was let go. That, and I was on one of the breaks that I take away from Minecraft time to time.