If you want it to be successful offer people 10% on tge downline meaning if they refer someone and that person ( the 2nd person ) refers a person you get 10%. 2 level referral program
While I like the idea of a referral program, a lot of people might think we are a Ponzi scheme if we use multiple tiers. It's a straw man argument but it could make Bitshares look like a scam.
They may come up with that saying "ponzi scheme" but its a side chain issue in this regard, as its a blog doing it. Stellar has a referral program that anyone can sign up to they dont do this type of 2 level multi level marketing but they get people through facebook.
You want to capture the attention of people giving them a reason (incentive) to tell there friends to tell there friends.