There are a few modules on CPAN that seem to be dead. Without pointing fingers (to myself :-), let's say there is a module called Dead::Camel someone started to develop, uploaded to CPAN but it never reached any form of usable version or for some other reason it is unusable today.
Eliminating these modules from CPAN might do a little good for the world.
I would be totally for moving these modules from CPAN and only have them be available on BackPAN. I have a few of them myself...
Liz