personally I have only witnessed the LUNA and UST scam at my expense. I believe it was one of the worst scams ever seen in the crypto world along with FTX. There were the conditions to understand that it could be a scam project but it was also sponsored by Binance and for many, including me, we were convinced that we had found the goose that laid the golden eggs, too bad that then one day it all ended and moreover in worst way