I've put up a quick site with the results of Acme::ReturnValue:

This page shows that Acme::ReturnValue is far from perfect because it contains a whole lot of false positives. But there are also some very funny things to be found.

I'm not sure if I'll spend much more time on Acme::ReturnValue, so I doubt that the website will see any improvements (filters, sorting, links to source code, ..). But I do plan to look at Perl::Critic::Policy::Modules::RequireEndWithOne, as suggested by Chris Dolan.

And I will set up a cronjob to generate the site (but probably only once a week - I want to spare those cycles for cpants...)