That file exists to list every single .pm file on CPAN and includes every single distro it's contained in and the versions of both the files and the distros. It's HUGE, is Data::Dumper output that gets eval'ed, and is generally a nasty thing to work with.
My criteria for good software:
- Does it work?
- Can someone else come in, make a change, and be reasonably certain no bugs were introduced?