Yes, this is what the 'hacker' claimed to have done, to begin with, he said that he was doing it a different way when we called him up on it, he openly admitted that it was he that was doing it, and he seemed to get some kind of joy out of the fact that he was the only one who knew how to do it.
He also claimed to have some form of serial generator, and we did ban him a few times (more than enough to hint that it wasn't a different comp each time)
For a while this guy was a nuisance to us, but he then told us how to fix the resources with holes, freeroam and admin being the 2 biggest offenders, he even gave everyone one the server admin rights, so we had to stop the resource.