[jacquesm]

I've worked on old but very well maintained code that could easily go another two decades or more. Probably the original writers have long departed this world. But what they put together was put together with either incredible forethought or impeccably kept up-to-date. It was hard to tell which because this stuff was built before the age of version control, which gives you a bit of an idea how old it was. I would consider that 'mature' code, but not necessarily legacy.

Legacy code to me is code that has become hard or even impossible to maintain. Code that people avoid working on, not because it works, but because they are afraid of it.

Sure there are still lessons to be learned from such code, and you will learn those lessons the hard way if you have the temerity to mess with it. But every now and then someone is tasked with fixing a bug or adding a feature that can no longer be avoided and the send-offs are comparable to talking for the last time to people that are about to descend into a mine or something to that effect. Everybody knows there is a good chance we won't be seeing them again for the near future, if the axe of demotivation doesn't cull them from our ranks.