Are you seriously trying to compare some next shiatcoin to bitcoin? Bitcoin has the strongest reputation as a reliable asset with strong fundamentals and applications ranging from mining to institutional investments. Pi Network has none of this, you shouldn't compare altcoin and bitcoin. Bitcoin is a currency, an investment. Pi Network is a means of speculation, a way for the developers of this token to enrich themselves.
A way for the developers to enrich themselves and gain access to the KYC documents of millions of users for free by making them fool with some coins that are worth nothing at all. They've never mentioned anything about a roadmap or any KYC or transferring the tokens from testnet to mainnet by completing certain tasks, they came up with all these when they've already got millions of users from all around the globe signed up and mining the shitcoin.
This is only if the developers themselves hold a token sale through the distribution of their coins to early users or through a token sale on their website. Many well-known projects don't collect anything from their investors, it is done by the launchpad and various third-party platforms that organize such rounds of token distribution to early investors, such as coinlist.