I think "certification" for most software is snake oil. 

And, despite the participation of fellow Perl trainer Peter Scott (whom I have the highest respect for), and my primary publisher O'Reilly (whom I also have the highest respect for) in a new "Perl Certification" program, I still think this is snake oil. 

Therefore, I will be discouraging individuals from taking such courses, and HR people and clueless managers from looking for such certifications, particularly demanding them to be considered for an application.  I will continue to work hard with my clients and my fellow contractors to have actual track records be considered, not some test one has managed to pass and pay for. 

Please, people.  Don't feed the trolls.