This is lame. Here's why:
1) No explanation of what's going on. How can you raise awareness when no one knows what's going on? Usually these FB things say to copy & paste something to your status. Yes, the mystery does make it go viral faster, I will grant that, but...
2) Simply posting a color doesn't do ANYTHING to raise awareness for a cause.
3) It's called UNDERwear for a reason. The only person I want knowing the color of my skivvies is my husband. I'm bashful that way.
If you want to raise awareness for Breast Cancer, make it clear what you're posting and why. Otherwise, donate time or money and accomplish something that will actually help someone.
Of course, by posting this blog, I have just made you aware of Breast Cancer. I can't even complain without somehow helping their lame premise.