I don't know how many monks already asked SD to prove his alleged expertise (20? 50? ), but I did a reproducible research of his code contributions in the last 1000 posts since 2014.

So I'm afraid you are going to be disappointed, too.

update

Revisiting the node I just randomly (!) picked one of his posts

Please note the // for commenting and the variables inside qw//

  my $found = 1;
  my $cursor = $hashref;
  for my $key ( qw/$key1 $key2 $key3/ ) {
     if (exists( $cursor->{$key} ) {
       $cursor = $cursor->{$key};
     } else {
       $found = 0;
       last;  // NOT FOUND - QUIT LOOKING NOW
     }
   }
   . . . 
   if ($found) {
     // $cursor REFERS TO THE ELEMENT THAT WAS FOUND ...
   }
[download]

This "code" looks a lot like from a retired PHP programmer who knows Perl only from cut and pasting.