In my view, the reason why Bitcoiners still use centralized exchanges can be explained by several factors. One of the main reasons is the convenience and accessibility that these exchanges offer. They make it easy to buy and sell Bitcoin for fiat currency and have a user-friendly interface. Moreover, centralized exchanges tend to have better liquidity, allowing for quicker trades at favorable prices compared to decentralized exchanges.
As o_e_l_e_o noted above, centralized exchanges pose huge risks in so many ways at once: while bitcoins are in their accounts, these coins are not in safe; as long as your data is held by any such organizations, it is not safe. Perhaps centralized exchanges provide a service that looks convenient and pleasant, but behind it lies the grin of a soulless organization that is not interested in the safety of users. I think that if bitcoin enthusiasts sometimes use centralized exchanges, it is unlikely that they use those require KYC. A centralized exchange in itself is not a good thing, but KYC is downright evil.