Generally speaking about finance, there is only one "framework" which is "CAPITAL MOBILIZATION". Financial products themselves have NO VALUE until "CASH FLOW" is injected into them.

Many cryptocurrency exchanges that listed Pi in the form of IOUs simultaneously announced the cancellation of this token "to protect user rights."
"Because Pi Network will open the network on February 20, CoinW will delist Pi IOU on February 13 to protect users' rights," the cryptocurrency exchange CoinW in Hong Kong announced. "Users holding this asset are advised to close their positions before the delisting."