it was always a low-volume coin.
there's always the risk of delisting, even with higher-volume coins. even xmr got recently delisted from the exchange i'm using.
but if it comes to that, there are quite a few other exchanges where pink can be traded.
Yes, you are right, this coin is generating very low volume and even we don't see any active developments being mentioned by this coin from the team. Yes, there are some other exchanges where the coin is traded, but then it is not able to generate enough volumes. So soon some exchanges will be delisted this coin.