I tried it, selected "All" (130 participating companies), and only five opt-outs succeeded. Tried it twice. And now those 125 companies (maybe the 130) know a

I tried it, selected "All" (130 participating companies), and only five opt-outs succeeded. Tried it twice. And now those 125 companies (maybe the 130) know a little more about me, and may be able to fit me into a contrarian niche for more tightly focused advertising.