To maintain referential integrity in your database en prevent cascaded deletes if a user claims the GDPR right to be forgotten, you can anonymize the user’s account: overwrite anything that can trace back the account to that specific person: hustle personal info, username, ip addresses, etc. This way, you can retain the records in your database (for whatever reason) and comply with the GDPR.
To maintain referential integrity in your database en prevent cascaded deletes if a user claims the GDPR right to be forgotten, you can anonymize the user’s account: overwrite anything that can trace back the account to that specific person: hustle personal info, username, ip addresses, etc. This way, you can retain the records in your database (for whatever reason) and comply with the GDPR.
Yes, I think that's how StackOverflow is using their license on the content.
Although, I wonder how this type of thing would work for content like selfies-- seems like anonymizing usernames wouldn't cut it in that scenario.