I know we've moved on from the devil's advocate thing slightly, but I'm just taking the time to follow links from the thread now and wanted to say, thanks to TerrariaMum.
I really like this comment from the Shakesville one;
"I have a lot of feelings about devil's advocate bullshit. It's so cowardly - a way of expressing an unpopular, so-called "politically incorrect" position without really owning it; arguing for something that you know deep down is some bigoted, mean-spirited nonsense but which you also kind of believe without admitting you believe it. And somehow simultaneously you manage to make yourself look brave for taking on the "unpopular" belief, for "daring" to say those things, as well as positioning yourself as some kind of masterfully rational, objective debater who's obviously superior because they can argue both sides of the debate. "Oh, but I'm just trying to HELP you refine your argument! I don't REALLY believe those things! I've just decided to appoint myself your debate coach and professor because obviously that is my right as a Rational Being!"
How nice for you that you can approach misogyny, racism, xenophobia, homophobia, etc. with such detachment. How nice for you that you can deal with those things as if they don't affect your day to day reality, as if they don't hurt you in real, tangible, painful ways, as if they aren't personal. The rest of us cannot be objective or detached because it is personal and it does hurt, and you have the temerity to suggest that this makes our arguments weaker and means you can patronize and dismiss us. Fuck that shit."
In response to my comment, someone else pointed out that you rarely see it happening the other way around - the marginalized person "playing devil's advocate" with the privileged person. Which, yeah, that really ought to give the devil's advocates of the world pause. It's just such a deeply dishonest way of engaging with another person and their experiences.