That is a terrible way to run a package repo in this day and age.
Maintainers need to have some level of vetting, and should own a repo or three for a while to establish a track record, before they get to blast out contributions to 100 of them without any review.
AUR isn't a package repo. It's a collection of user-contributed PKGBUILD scripts, to make building packages from upstream source distributions more convenient. It's not meant to be treated like an official repo of binary packages.