How is it that people come on random servers and make themselves admin?
lekr did it to me when I was recruiting. He didn't want to tell me how he did it.
Can ya send a screenshot of the message (whole game please) it gave you. A couple of things come to mind for me, but I'd need to see the circumstances of the screenshot.
You probably mean one of 2 things:
1. If it said "lekr was opped" it means an owner pass was set (with /setowner <password>) and he typed /owner <password> and was therefore opped.
2. If it said "lekr is the new server admin" it means he is the house, so bet rakes will go to him. This happens because server admins are saved on an IP of a server. So he was previously house and he came back, and it made him house again. You can fix this if you are op by typing /house <username> and whoever's username you type will be the new server admin