Doesn't have to apply at all, perhaps OP's job entails a lot of that style of writing, and it's just habit. Just like I still put a slash through zeroes (0) whe

Doesn't have to apply at all, perhaps OP's job entails a lot of that style of writing, and it's just habit. Just like I still put a slash through zeroes (0) when writing by hand, even though I haven't coded on an IBM coding form in decades.