That site is utterly useless and a waste of time. It is like trying to communicate with a black hole: One can feed it as much stuff as one has energy to expend, but nothing will ever come back. For all one knows, the report may as well simply be forwarded to /dev/null wihtout anyone who knows anything about the matter ever reading it; so why bother.
I know how to report bugs, though, as I do that regularry on various opensource project's bug tracking systems. But there someone actually reads the report, processes it transparently and communicates back as necessary. So these systems make sense for an end user, whereas Apple's does not.