There is indeed a widespread phenomenon of users purchasing KYC on the market, which is a common industry fact. However, when referring to "unspoken rules," it means that this fact itself objectively exists, not that it is justified.

Returning to the handling method itself—account freezing and refunding via the original route—is not actually outside the norm. In an industry that is still not fully mature, exchanges should base their actions on the factual truth and handle such situations with discretion. After all, platforms already have a certain degree of discretionary power in rule enforcement, and the key is how to use it more rationally.