Just one example: At one end of the spectrum you have working code (with bugs hard to find and fix) and at the other end of the spectrum you have maintainable working code that can actually be understood by other people but the original author (within a month from authoring the code).
I don't know @Asmyldof's coding style, but I do know there is a lot of unreadable code out there. I wish companies would hire more people that write maintainable code.