Well, I hate to be the Negative Nelly once again concerning reporting options, but...
First thing I need to say is that trolls will ALWAYS be trolls regardless of what systems are in place to 'punish' or 'deter' them. As a forums moderator, I see this almost daily and sometimes multiple times a day. We have a reporting system and people use it. But, guess what? Those trolls come back and do it all over again. Occasionally we do have some who have learned from their warnings and have changed, but that doesn't happen often. Bottom line is this: trolls will always exist, but the question is how are YOU going to let their actions affect you?
Concerning moderation staff appearing at a player's beck and call when dealing with someone being a troll. This is a pipe dream. It's not that 'someone is worried about having to actually be responsible in lieu of the title granted to them.' It's because of the following reasons:
This whole project is volunteer. NO ONE is paid. Staff do not exist all over the world in every time zone to allow moderators to be present 24/7 in game and able to appear out of thin air to deal with someone being a jerk and using some weapon to cause lag or crash a server. IF/WHEN they happen to be present in game and see/experience this, then yes I can see them dealing with it AT THAT MOMENT.
I GUARANTEE you that the moderation staff DO and ALWAYS WILL take their job seriously. They do the best that they can given that they are not paid, have a real life and real jobs. They do the best they can with the tools provided. They are 'committed to do[ing] "the job".'
I'm going to repeat what I said above:
Trolls will always exist, but the question is how are YOU going to let their actions affect you?