Network based marketting has always been a scam. Once you've deposited BTC, how are you supposed to attract referrals? Everybody stuck in such schemes, claim things like "My friend's friend earned so much. So why don't you try this?".
In 25 years of life, I've never seen a single guy become rich through such schemes. It's always been a friend's friend who's set an example that would supposedly motivate us into it.
the admins make money, that's the scheme. enjoy your scam people.