If you dont care about race, why even bring it up?  The only people I have ever scene bring up how they dont care about their race, heritage, culture, blah blah blah are typically the ones that care a great deal more.  
When I read a WF post I never consider the race of the poster (unless blatantly pointed out).  You are simply identified by your avatar, and username.  If I met you in real life you would be that mixed guy that I hang out with, and I would be the white guy you hang out with.  Its just the way of the world.