Regarding the liquidity and support of the coin by the Cortime, Dr. Fan, Nicholas' wife, announced during the network opening celebration video that the founding team did not sell any coins in the initial coin offering (ICO). Usually, when launching any coin, the founding team sells a portion of the coins to support the market value of the coin on trading platforms.
Regarding Pi, the current value and liquidity depend on the buying and selling operations between members who own the coin, whether they are in a hurry to sell, hackers, or those who bought the coin at low prices during the closed network period. When the coin is pumped into the ICO market by the Cortime, the price is expected to rise significantly.
So far, there has been no liquidity pumping, and God knows what is going on in their minds. They may be waiting to get rid of those in a hurry to sell the coin, or they may have a specific timing in their plans.