It's pretty darn easy to write lazy code in any language.
Java for instance allow you to write empty exception catch blocks, PHP lets you go without OO or use strict much like Perl.
Perl and others therefore allow a freedom to display a lack of education or a lack of discipline(lazyness).
This can be a good thing though as there are many situations where undisiciplined(bad) code does not matter and the development speed does. This especially applies for one off throwaway scripts, (It can be great to know your code will be useless after x occurs)
Discipline often takes more time and patience which is why it is frequently skipped with an evil laugh:)