There are two measures when it comes to coding.
- Does it do what it is supposed to do?
- Can I look at the code and easily understand what the code is supposed to do?
Most programmers(which are bad programmers) stop at step 1 because most people are not going to check the code that the wrote unless there was a bug.
As for 2, can you really tell me that code is understandable? Come on, it is just a bunch of numbers, it conveys nothing except you learned what a reference is.
Let me ask you a simple question, do you believe that this a well written program? Do you think our most learned Perl monks like chromatic, Corion, or TheDamian ( no offense for missing the several hundred other talent monks out there ) would write this sort of code? I believe you know the answer.