You both could be right.
At first, @
you should learn to care more about your accounts/data.
I meet people like you also on the server where I am, and the reason for the theft was always one of these: sharing of account data; same pw+email in another server. Even if the server isn't that secure, no one can "hack" (typing the exact same data isn't hacking) your account on other games, if you use a different login.
Moreover, you could simply ask the serverteam to recover your items. If you follow their rules and keep a nice behavior, there shouldn't be a problem then.
@
As you can see, there might be a problem with one of your GMs (or whatever you have), maybe you should improve your security or keep an eye on them. And no, thats not an evil accusation, it wouldn't be the first time that GMs use the acc data from their own data to get accounts/items on other servers.
Don't see it as hate, I just want to be sure that players have a safe account.