Okay - what would be the appropriate way to handle this? Label the person a whatever-ist and shame them in a public thread? Ban them? Delete the "subtle" stuff to wipe it out?
My desire for the community as a whole and for those who come here to join us as new members would be that we educate them with discussion. Talk about the issue, explain what they are obviously ignorant about, make them aware. That is what discussion is all about.
We get more out of educating and informing than we do out of labeling those who are voicing any sort of -ism. I'm not a fan of 'outing' people.
I prefer to assume they really don't understand what they are talking about and that what they may view as a reason is exposing a prejudice or -ism they hold. Now I could point it out with a "that is so racist and classist to say that! It disgusts me" and make them feel defensive, setting the discussion stage of the thread for a downward spiral. Or I can take the time to help them look at their words and see how they are wrong, explain the other side of the picture that they are obviously missing. And perhaps they can better explain themselves and I may learn something in the process too.
That's me and that's basically what I expect from MDC as a discussion community. But of course if there are outright statements being made with persistence by a member, being advocated through repetitive posting then it is an issue I would take up with them and not allow to continue.