As I said before, this is a pure testsite for me.
I want to test some modules and components on a live production server before I'm going to use those in production sites.
I didn't restrict this page on purpose - there might be a Joomla user who could be inspired.
For your information: If there is not a test listed on a specific test page then there is no actual test on this site. I do not keep all tests after test period.