WordPress MU

As far as I understand, in order to add an author to a blog, the author has to first register himself in the site, and only then the blog administrator can add him.

To me this process seems like a waste of time and the user should be "added to the community" when it is being registered as an author in a blog. But before I go and change code, I would like to understand the reasons that it is being done this way.

Thanks.

If I understand your question correctly, I think the reason a "blog admin" can't add a user, is because users are at the "site" level in mu.

Users can be created by the Site Admin or people can create their own accounts--subject to restrictions by site admin--then, once a person has an account, any "blog admin" can add them to their blog.

I like the fact that the "site admin" has control over creation of users...I wouldn't want individual blog owners to be able to create additional user accounts.

Steve

But at least in the default installation there is actually no moderation on who can register (except for the e-mail domain) therefor the restrictions on other possible paths of registration do not make sense to me.

I had this problem too, not actually "solved" but goover installing the WordPress-MU multi-site plugin, deleting the site of the blog that was giving problems, creating the site again cloning all the options of one of the sites that could add users without problems. Hope it helps. Greetings from Colombia