Totally anonymous backup

I've been requested to send anonymized backups of our JIRA to Atlassian in two ocasions. On both of them, due to security reasons, I was not allowed to send anonymized backups, due to the fact that worklogs, users names and e-mails are not anonymized.

It would be nice to have an anonymized backup that hides all of this sensitive information. Worklogs might be replaced with "xxxx" and users names and e-mails might be scrambled or partially deleted and replaced with some kind of sequencial numbers.