I dont quite understand the essence of the project, how can I make a profit?
You need to invite people with you invitation link + you can get more points with posting, get likes etc.
The usual referral system, the best way to attract new people to the project, so many who do in the market
Most projects use similar methods to attract customers, this is not surprising. However referrals will be difficult to attract if the project does not show good results in the development.