A tool for deleting Discord message history.
:warning: Any tool for deleting messages, including this one, could result in the termination of your account (see self-bots). Discord appears to have recently started cracking down on self-bots. You may be required to verify your account using a phone number upon using this tool.
It is recommended to first open all your DMs with tools such as discord-dms-opener and then proceed for deletion.
Discord blatantly does not care about privacy.
...amongst other egregious infringements on privacy, which you can find a list of here and here.