This is a fundamental lie spread by the Pi coin team and subsequently by fans. It is that Pi has more than 15 million active (mining) users. I already read that number a year ago. The picture shows the distribution of wallets by the number of people holding Pi. The most interesting is the last position called Microbes and there you can see that
13,466,441 wallets (accounts) own 0-10 Pi. What does this mean? One single and essential thing is that most of those 13M accounts are inactive. These are accounts that people sometimes installed the Pi application out of curiosity, but eventually stopped using it and may no longer even have it on their mobile phones. Why do I think this? Because 10 Pi can be mined relatively quickly and therefore if there were 15M Pioneers a year ago, these must be inactive people. Who probably don't even have that application installed anymore.
And one more important thing about the 22 Whales wallets with more than 10M Pi. Do you think they mined them or bought them? NO, they simply credited them or received them. And they will also include Sharks with 1-10M Pi. Most of them also received Pi for some kind of favor from the Core team. And these are also the ones who sold it from 2.9 to 0.5 USD.