Hey I'm a big fan of Privacy tools! 😁
I do not believe this is possible (nor necessarily advised as a good option) presumably this is for GDPR compliance? I think that functionality should be admin-only as there's potential for abuse otherwise. E.g. someone creates a bot to spam your forum and repeatedly joins - makes a ton of post, then deletes their profile and user data (IP address, email, and username) rinse-and-repeat.