The main justification for getting more space is to show projected usage based on past usage. So if I get a /19 and use it in one month instead of three, I'll g

The main justification for getting more space is to show projected usage based on past usage. So if I get a /19 and use it in one month instead of three, I'll get an /18 next time, because that's about how much I'll need to sustain my growth. Rinse and repeat. Speaking on DO, it's likely that they grew so fast in the beginning they were able to acquire an awful lot of space.