While I don't condone the actions, the part where you say "without telling you" is unfounded. I just went through the sign-up and there are clearly two checkbox

While I don't condone the actions, the part where you say "without telling you" is unfounded. I just went through the sign-up and there are clearly two checkboxes, which are checked by default: [x] "Share on Twitter [x] Follow @Prizes"