Better Site Collection Level Auditing and Web Application Level Auditing
Sometimes there are features that are enabled on a Site Collection that can cause end users significant headaches.
It would be good if there was an option to enable Auditing on a Web App Level for Features and the same for at the Site Collection and Site Level with details on who enabled the feature and when the feature was enabled.
This is especially useful for use cases where there is a custom developed feature and you are determining an issue with this either across a site, site collection, web application or even across farms.
A key example of this is when the Publishing Feature is enabled on Site Collection and this changes the Behaviour of the Navigation.