Final answer:
To send an empty message on Discord, use an invisible Unicode character such as the zero-width space (hold 'Alt' and type '8203'). Copy and paste it into the message box and hit send, but remember to adhere to Discord's guidelines.
Step-by-step explanation:
To send an empty message on Discord, users typically utilize a workaround, because Discord does not allow sending messages that are completely empty. One common method is to use invisible characters that appear as blank space. For example, you can use the Unicode character for a zero-width space, which can be copied from various online sources or by using the character's code.
On most keyboards, this can be done by holding down the 'Alt' key and typing '8203' on the numeric keypad. Once you have the invisible character, simply paste it into the message box in Discord and hit send. However, it's important to use this method responsibly and be aware of the platform's guidelines to avoid any unintended misuse.