Full-time or permanent employees?

Created by: philwills

In the contributing doc, it states:

Only full-timers please; no interns or contractors.

Does this actually mean full-timers, or does it mean 'permanent employees'?

We have contractors who are full-time, but some of our most senior engineers are permanent employees who are a core part of our engineering team, but work four days a week, so wouldn't qualify as full-timers. It would feel very strange not to include them in our numbers.