One ponzi had over 70btc in its wallet yesterday, now 2btc. Nobody ran away, they sent all the payments.
Oh wow! 70 btc you say. pshhh your thinking small time friend.
They will be waiting for a larger amount to be confirmed to them.
But some smaller ones make take the first thing you send, you can't know.
That is a multitude more BTC than any other bitcoin ponzi has achieved. A scammer would have taken it if this was their intention.
There is over 400btc received by this ponzi, with 1% fee he is making it worthwhile without having to scam.
You have zero proof to backup your accusations.
example http://ponzi.io/
Total deposited (BTC) 348.568464
saw higher than 70 at points.