This isn't my name, but it is nevertheless regrettable.

• Base: Not to be confused with base, but easily confused on operating systems that don't know how to deal with case-sensitive filenames. 'Base' really ought to just be removed from CPAN. From what I can tell it hasn't been maintained in ages, and is all but replaced by the 'base' pragma.
  

Often I find CPAN module functionality under module names that I wouldn't immediately have guessed, but as quickly as I stumble across such modules I forget my frustration and just go on using them. But the Base/base issue bugs me.