Request #20422 has been rejected by eschwartz [1]: It is not possible to purge personal data by deleting and re-uploading a package, since the git repo is persistent.
I've communicated privately with the user and based on that discussion, I've used git-filter-branch to purge the git authorship information and maintainer comments, using my Trusted User credentials. Either way, package deletion wouldn't accomplish anything, but the problem is nevertheless solved. [1] https://aur.archlinux.org/account/eschwartz/
