In my opinion, questions should be exempt from voting completely.

• Yes, very good point. - There seems to be no reason to vote for the quality of a perlquestion.

• and yet - No, there may be a need to downvote a flame, trolling, non perl-community advertisement, or a post that's otherwise off-topic and of no relevance:
  Make it appear in Worst Nodes for the monks to notice so it will eventually be reaped.
  And then there are questions where you read the monk in question has worked hard to make the discoveries he presents to you, but hasn't reached his goal.
  You will want to upvote him for the effort sharing his work experience with Perl.

Cheerio, Sören