Every now and then, a member asks someone on staff, "how come my infraction points haven't been removed when it's been longer than 3 months?"

The infraction point provisions in the Rules and Guidelines were less than ideal in explaining the way the system works with regards to what happens to infraction points over time.

I hope this version clears things up:
3 points = 24 hour ban (points remain but become inactive 3 months after the ban is lifted)
6 points = 3 day ban (points remain but 3 points become inactive 3 months after the ban is lifted)
9 points = 1 week ban (points remain but 3 points become inactive 3 months after the ban is lifted)
12 points = 1 month ban (points remain but 3 points become inactive 3 months after the ban is lifted)

Anything above 12 points will result in a permanent ban.

If you get a 24 hour ban (3 points), when the ban is lifted the points remain. That means if you get another infraction within three months, your point total will be 6 points, resulting in a 3 day ban (6 points). It then progresses through the scale with each new infraction. Each set of 3 points will expire (become inactive) 3 months from the date the infraction and points were given...
Inactive means that the points are no longer in the system's calculations.

A related question that sometimes arises: How come [other member]'s points have been removed?

The answer to that is now included in the Rules and Guidelines:
Senior management may opt to expunge part or all of a member's infraction record in recognition of that member's ongoing improved behaviour.
- Rules and Guidelines