As I understand, it is currently possible to do the following:

1. Configure Hudson, so that only authenticated users may eg. start builds.

But every user has the possibility to signup, and to choose a name on his own.
So what do I gain that the user "mickey" has just started a build?

I would like to see the following:

1. The user with administration rights may disable that anonymous users may
   signup themselves.
2. The user with administration rights has now the duty to add the user in the
   [Standard Security Setup|http://wiki.hudson-
   ci.org/display/JENKINS/Standard+Security+Setup].
3. The user with administration rights has now the duty to register all users.

This would be more appropriate in a commercial environment where a project has
to ensure that no other user has access to the projects data (which is now
possible by signup and after that copy the content of the workspace).