Next time be sure to take a screenshot that has both the username and the character name and send it to an admin. The old report button didn't work, and that was why it was removed. These people will continue doing this if you don't report them. I'm going to lock this, if you have a problem with how the game is modded please send Admin a PM, the forum is no place to discuss this, and as Ramine said, there are other threads specifically for this kind of stuff.
Feel free to send me a PM if you'd like this re-opened, but there isn't much "General discussion" you can derive from this.