Many years ago the startup I had co-founded outsourced a chunk of development work because an investor wanted us to - what was produced was pretty much "catastrophic, unmaintainable" code that took a few developers on our side to rework (probably rather more than it would have taken to write the code from scratch ).

What we did like about the code was that each developer in the offshore team had created an exception class based on their own name - so the application would report "There has been a XXX YYY Error" - where XXX YYY was the name of one of their developers.

[And after ~15 years I can still remember the relevant name for the first one of these I saw].