There are 3 options for awarding points to incentives users.
The first option is to award points for signing up.
The second option is to award points for referring other users to sign up.
The last option is to award points to incentives sending visitors to the campaign.
Joe runs a campaign - He adds 10 points to sign up, 20 points for a referral, and 1 point for a visitor.
Ben comes to the campaign and signs up, he then refers 10 visitors, and one of the visitors signup to the campaign.
This means Ben will have earned 10 + 10 + 20 points towards his account.
*this is an update from Referal lead, referal signup options that have now been rolled into the 3 options above.