You may remember #LIBOR scandal
Abuse of #London Inter-bank Offered Rate began probably in early 90s and was exposed in #TheWallStreetJournal around 2011
It was a result of #SelfWashing trade where the same person sells and buys back something via highfrecuency transactions. One of the effects was that LIBOR drove mortgage payments upwards and allowed high fees to brokers to be used to launder black money. Well it seems that #NFT and #crypto markets has been inflated by this self-washing trade