Reputation System?

I played on a mud that had a mechanic like this. Say someone did something out of the way nice, you can use the Thank command to increase their reputation towards good. At the same time, say you have a char steal from you, or not give you the gold for the item, or any other number of things. They can deprocate you, moving it towards the opposite end of the spectrum. Just an idea.

Also to prevent people spamming it, only usable once per lunar cycle maybe?

but what's the point of it if they're a goodie and you're a goodie(because we all know goodies wouldn't do that to each other), or they're evil? the only case this would apply to is a neutral.

This will only work if the whole pbase acts in a mature way at all times. In other words, just forget about it.

yeah, pretty much what he said. ^