In order to get good error reports from users, it would be nice to have a well known key pair.

I've looked into the gnupg git master but I didn't manage to find a rsa key that is 3072 bits long and is not password protected.

The place and the purpose of the key should be well known and public.

Edit: There was an Email (see external link) some time ago with more and other requirements for such a key. Maybe more then just one key in a public place would be a good idea.