I also know of nobody who wasn´t paid their owed reward from mining on any of the weekly paydays.
Also, ebay uses paypal and obviously has the ability to follow the money trail to almost any person that sells with them.
Yes a lot of people have been paid already...we get that, it doesn't prove anything though
I am not quite sure what your 2nd sentence even means so I guess I can't argue that.
Ebay uses Paypal because they own them. Both companies have the ability to follow anything that goes down on there if it is worth-it. I am not sure how much contracts are being sold on eBay but if its a fair amount and people were to complain it could get interesting...I personally don't think they are a ponzi though.