Do your best to avoid pissing off or making yourself known to crazies, and do your best to make sure that any actions that might piss off crazies or make you a

Do your best to avoid pissing off or making yourself known to crazies, and do your best to make sure that any actions that might piss off crazies or make you a public figure can't be traced back to an address. It's not a great solution, and there might be other ways, but this would be the common advice. It's not exactly feasible all the time though.