Missing module ? - why can I not find a specific module?
Is it in the index?
MetaCPAN uses the PAUSE-generated 02packages.details.txt file. If it's not in there, then the module author will need to fix this. (Authors are usually emailed about this when they upload a distribution).
Is the distribution POD only with no package?
A distribution must contain a package, even if it is 100% POD. A good example of this done correctly is Catalyst::Manual. Check the package declaration in the source of this file. That's the key to getting your pure POD distribution indexed by PAUSE.
I still think this is a bug
We do have bugs, so this is possible, please help by...