Initially, when PI Network created a lot of hype, I was skeptical about it. Because where people are investing huge amount of money to build mining rig, how can it be so profitable for its miners only through mobile mining? However in the beginning I also mined with its hype but after a few days it didn't seem very safe to me and so its stay on my phone didn't last long. Anyway, I think it will eventually come out as a scam, so I will tell everyone not to invest in it, also don't let it place on your mobile.
Only those who already know how difficult it is to mine coins will understand that the way to get these coins just by mining via smartphone is a lie, unfortunately despite being told many times not many will accept that this is a scam project, maybe even when trading their IOU tokens running on many exchanges and thinking the price of this token will reach that high is the truth, so many still think this is a good project. It is not strange if in the end the developer of this project is investigated because of course there are many who suffer losses, but those who experience these losses will never get their money back. However, what the authorities in Vietnam are doing is a good step in order to reduce the activities of scammers.