Definitely not interested, referring people to earn is a big pain most times, I have many friends but they don't care about all this referring and earning, bounties just works better for me than begging people to click on my referral link and again bounty gives more exposure to a project than referring people to earn
It's actually depend how you invite your friends to join under you and what they can actually earn in that website. If you are just dropping the link without giving details to them I don't think someone will register .
It's not that hard now to refer ,even you don't know a person personally you can also invite them and join under you. There are many groups already in facebook and telegram channel that you can use to make your affiliate link seen by many people.