This is a lesson, but I think we've come to this point because it practically doesn't matter that much. For instance I can't think of any document or design di

This is a lesson, but I think we've come to this point because it practically doesn't matter that much. For instance I can't think of any document or design discussion I wrote in the past 10 years that would still matter today. Either the system is still somewhat live and running, and it's probably too far away from the original design for these docs to matter, or it's dead and buried, the company potentially not existing anymore. In a way, actual permanentness is overrated for many many applications. Now, people would be more sensible to disruptions of the current business, but arguably services like Slack or JIRA have a better track record than home made internally managed systems.