If you run a contest or other type of promotion on Pinterest, you agree not to:
Suggest that Pinterest sponsors or endorses you or the promotion;
Require people to pin from a selection;
Make people pin your contest rules;
Run a sweepstakes where each pin, board, like or follow represents an entry;
Encourage spammy behavior, such as asking participants to comment;
Ask pinners to vote with pins, boards, or likes; or
Require a minimum number of pins.