OKX Founder Star: Cross-site UIDs should be globally unique—or UID-only transfers must be prohibited

OKX founder Star stated that UIDs across all OKX-branded platforms must satisfy at least one of the following conditions: they must be globally unique, or users must be prohibited from initiating cross-platform internal transfers using only the UID. He emphasized that a UID is fundamentally an account identifier; if duplicate UIDs exist across different platforms under the same brand—and cross-platform transfers are permitted based solely on the UID—it could lead to incorrect payee identification and, consequently, misdirected funds.