It's not enough to clear data files on Steam, if it's the server that's detecting you, it can be Data files, IP and/or HWID, and if it's EAC that's detecting you it can be IP, Data files on Steam and on the EAC downloaded on your computer and HWID, so I would recommend clearing everything, maybe even rebooting your computer, changing your HWID and then using a VPN all the time you play, but that is if you REALLY want to play Rust