After my last post, Rich Buggy mentioned his own complaint, something that I remember from my days as a commuter - Cityrail, every year, run a Saturday timetable (with some extra peak-hour services) for around a week, roughly between Christmas and New Years, and usually stretching a few days on at least one side. Despite the reduced level of service, they still insist on charging full peak fares for anyone trying to get to work before 9AM, or buying a weekly ticket. Full details of the reduced services are still on Cityrail's website.
More interestingly, an anonymous commenter (who I think I'm going to name "Deep Train") left a comment, which got held for moderation. Rather than letting it through, I'm going to publish it here, as it's worthy of its own post.
It is worse than you think. If CityRail was in the energy business it would be called Enron. As I understand it, the figures are fudged in various ways, but I only have unsubstantiated rumours to that effect.
So on-time running is measured only at Central at the moment. However, I heard today, confirming unsubstantiated rumours, that on-time running is lower than 25% at some stations.
These performance indicators should be measured by an independent organisation.