Can't say I am apart of it but doing it the way https://rayatheapp.com/ does make sense. Essentially, referrals from existing members. + looking a how many Instagram followers you have.
Using another app such as Instagram as gatekeeper seems to make a value judgement about people not interested in the gatekeeping app’s business proposition.
That way people would be less likely to give referrals to people they didn't know well - as you are vouching for them, and it makes it easier to identify sets of bad actors.
