The points refer to the basic unit of fines that can be issued by the CTTT. At the moment one point is the equivalent of $110. It is expressed this way so that they don’t have to rewrite the Act every time they want to increase fines across the board. So right now, say, five penalty points equals $550.
I’m pretty sure the caretaker would be liable for any fines but I would check with a strata lawyer before you have any further with this. Make sure you have copies of any correspondence regarding the letting of the apartment.
It’s time your building had a good hard look at this person who is probably also breaching council by-laws. I hope our friends from ARAMA (the Australian Residential Managers body) are reading this because they would tell you that caretakers never do this kind of thing when we know some are rorting owners left right and centre.