I love when this thread gets bumped up :)
My FB feed is fairly free of MLM stuff. I do have one lady that does Shakeology, and would prefer if I didn't feel like a pm is trying to lead to a sale (we pm about other stuff, she was my son's first daycare lady, I work with her husband, we've always known each other, but every now and then it drifts to "do you want to try/join..." stuff, and I have to explain that I'm still not interested).
Another friend has joined the Lipsense nonsense, but she doesn't post much about it, so that's good.
I do love that "don't get annoyed by me, just share my stuff so you can help me annoy someone else!" attitude in the above post though.