antonknee:
Given the apparent attitude of one poster who would appear to be management of some kind in this thread, I'm frankly entirely unsurprised that person appears to have an issue with absenteeism amongst their team.
I'd be very concerned with how access to discretionary leave (referring to the policy says x days but managers can give more if they think it's appropriate) as described is managed - you need to be incredibly careful this is not being applied in a discriminatory manner or open to abuse. I speak from experience having seen how badly wrong that can go for a former employer.
Our sick leave is not unlimited, but we do get 30 days available immediately, and 30 new days on every anniversary, and it banks, so it may as well be.
From memory it's a provincial primary industry with a unionised workforce. They typically aren't hotbeds of positive workplace culture and there can be some pretty weird behaviour from employees as well as management.