Indefinite retention
You are agreeing that Discord keeps your personal data indefinitely based on their own determination of when it is no longer needed.
“We retain personal information until we determine it is no longer needed for the processing purposes for which we collected or retain it or for legal compliance.”
What that means: Your data remains in Discord's possession even if you stop using the service actively, with no guaranteed deletion timeline other than account closure.
The policy allows indefinite retention of data based on vague "processing purposes" without a fixed expiration date, meaning your history stays with them forever if they choose.