👉 The unsubscribe fluid is a common practice used by many online services to automatically remove users from their subscription lists or email newsletters. It consists of three words: "unsubscribe," "fluid," and "you." When a user clicks the unsubscribe link, they are prompted to enter their email address, which is then sent back with the fluid. This method is widely recognized and accepted because it's simple, quick, and effectively communicates the user's intent to cancel their subscription. Despite its simplicity, it has become a standard way for services to handle unsubscriptions.