Same thing happens everywhere. Fire code, regulations and other best practices improve and we don't use asbestos, leaded pipes or non-grounded electricity to bu

Same thing happens everywhere. Fire code, regulations and other best practices improve and we don't use asbestos, leaded pipes or non-grounded electricity to build houses anymore, despite how good and convenient it was 30 years ago. Now you could still live in such an old house today and be happy but the moment you remodel and tear down that asbestos wall you will need to sanitize the whole thing from dangerous particles. Same thing with old programming languages, they don't have the same guard rails as today so once you start tearing up old dust there could be invisible demons awaiting, especially if done by people with limited experience in such environment.