Yeah I know, but I think this happens a lot when people are close then have a falling out, the accusations can get extreme.
Like he mentions drug use and racially mocking others, I'd bet money the other dudes have similar stories about Stanley. Does that make them all racists/anti-semites/assholes/addicts? maybe, but it could also be people who have lived through numerous years of wild, crazy shit retrospectively looking back at those they've fell out with and labeling them for particular moments.
I don't really know though, I never met them. Maybe Peter Criss has a swastika tattoo or something.