Well the GM are volunteering what I believe is most of their free time for the project and have no obligation toward us.
When this kind of problem arises, they just hammer everything in sight as a warning to others, it doesnt matter if it's not really fair or really right. We are not customers, they just have the greater good of the server in mind.
It sucks to be banned for this kind of thing but.. you are just one out of tens of thousands of players, and believe me when I say that I have seen countless guildies and members of my community (chinese players) unfairly banned, but in the end it's just a 12 years old emulated game