>buy back coins at the maximum price.
I dont get it. Does it mean, I repurchase a coin that has been bought from me? Or who's buying back what?
When the coin is at the top price, its bought by the platform itself. I guess, just to guarantee a profit margin for every user.
Except the coin is picked at random, so it could be a while before the last holder gets any return from that.
sounds like there could be a situation where some coin can be not bought out at all