PI surely is a scam. They are scamming people in different times in different level. They had announced exchange listing a few years back and even listed a fake PI token with fake trading at a high price. I looked for ways of withdrawing the coin at that time but they had none.
Now they have listed it again but has placed different hurdles to withdraw the coin. The coin being listed rose to a high of 1.8 and is now struggling around 1.5. It's a good time to sell it if you are able to withdraw it to the exchange.