Where can I report abuse from one of server admins?

I was playing Rust with my friends on some server
Then there comes some admin http://steamcommunity.com/profiles/76561198064629349 forcing me and my friends to take part in some pvp event. When I said no, he started to abuse me using the dirtiest words I ever heard. How this can be stopped or you are not responsilbe for your players wanting to have the kind of game they want without being forced and abused? If it is not your responsibility, then whos is?
Thank you for the reply in advance

Best advise, change server.