I worked at a company that didn't merely issue this edict, but attempted to enforce it technologically. Every file in every commit was checked for the presence

I worked at a company that didn't merely issue this edict, but attempted to enforce it technologically. Every file in every commit was checked for the presence of a prescribed style of copyright string (something along the lines of "Copyright (c) YYYY Acme Inc."). For a lot of my time there, I was more operations than development. A lot of piddly-ass configuration files and other things no copyright could possibly exist for got copyright strings added just so I wouldn't have to remember to type "NO ACME COPYRIGHT" into every bloody commit message to bypass the hook.