It's a deprecated unit of measure. In a lot of forums like this one, there's a lot of people that work in the technology field and we're always annoyed by people that insist on sticking with something that's deprecated because people invent rationalizations for why the thing they're used to is better. I use Fahrenheit for cooking but I'm not telling people I do that because it's better in some why, I know I'm using a deprecated unit of measure solely because I'm used to it.