[bobbles]

Another example would be when a developer who build a framework at an organisation has left the company.

90% of the time, when people look at the code, you will hear comments like 'who wrote this garbage??'. In reality, the system was generally built to the best knowledge / requirements that were available at the time.

(I'm sure many people here have thought 'who wrote this crap' and then viewed the author to find out it was something they wrote many years ago, but have just gotten much better over time)