Let me add to the list of sinners another module which is not ripe for primetime:
in reply to Re: Re: The quantity vs. quality lesson
in thread The quantity vs. quality lesson
Which is a CPAN Module provided by your Company and runs also on your companies website, It is only useable after reading the sourcecode and only if you know German, to understand your implementation of the cardinal number 1 . I for myself view the missing information about the handling of the number 1 at least as a documentation bug. So my advice as a reviewer is to not use this Module except for hobby projects.
Expample: 4801 becomes viertausendachthundertein. This is not exactly wrong, but documentation is needed.