so my friends gives the IP too these two guys. They drop stuff allover the ground, in concentrated areas, which slows down the game exponentially. Then they killed my brother. after that they teleported him back to them and killed him again, and again.
I got on a dissed the guy who did it (Noizetank) I de opped him, and then kicked him from the server. then the second person (HiiranaYuki) unbanned him, and re opted him (opping is like admin powers) then i tried it again, but they both blocked my bans, and kicks through hacking clients, so i had to shut down the server. And the whole time Noizetank pretended he only understood Spanish, not knowing who I was in real life. I know a friend of his, who later confirmed my suspicion he understood english completely.
They're slowing down the game messed up everyone else playing on the server, and almost caused my computer to shut down. Especially amazing because I set aside 5 GB of RAM for the server.
I still can't ban them because they're using hacking clients.