Plutonium

People host their own server and therefore can have their own rules including banning people they don't like or whatever. Most of the time they pay for their own servers and Plutonium is just a tool.

If you're unhappy talk with them or play on another server or host your own

Scripts are server side: they can only be loaded by the server. So joining a server with any script won't get you banned and won't even try to load that script either. You're fine