@YOSHIE, I think you know OP is not referring to only CEX.io but centralized exchanges generally.
Do you guys think CEXs are still worth it? Let me hear your thoughts
Centralized exchanges are still used mire for derivatives trading like perpetual futures and options. Many people are still also using centralized exchanges for spot trading. Some people visit their launchpad and launch pool. They are also using their staking but which can be done on noncustodial wallet. They have coins that you can stake and have APR.
Just use a reputable centralized exchanges. Do not leave your coins there is what that is most important to know.