Comment 4 for bug 1281364

The way the code is currently written is that a user is given the option to delete themselves unless they belong to an institution that has "Registration allowed" disabled. So it doesn't actually matter what your auth method is, or whether you self-registered. It's just whether your institution allows self-registration.

Since the implementation was quite simple, I've put together a quick patch that adds a config.php option to always allow users to delete their accounts: https://reviews.mahara.org/3089