Drupal-generated error message displays db username and host

I strongly feel it would be much better of this extra information were not automatically displayed whenever there were an issue with a site. Is there a reason for such a public display of such security-related info? I cannot think of any useful purpose for announcing that info. Am I missing something here?

* Filed as a feature request since it seems to be by design, and is not utterly critical -- just undesired, at least on my part. *