[jburgess777]

I never understood the mindset which seemed to interpret “we must preserve this for 5 years” as “we must _delete_ everything after 5 years”. I understand they want to minimize storage costs but they are destroying institutional knowledge. I have recently wanted to refer back to my notes on some older services and discovered that all my old notes have been deleted.

[jemmyw]

I think the rationale is that they don't want any liable behavior to be discoverable. Institutional knowledge could be in a controlled document storage and the email thread where you negotiated some kickbacks 6 years ago is shredded.