We have experience in Ontario where our commissioner in Ontario has had to deal with situations--not frequently--where somebody is asking for the same record over and over again and it is overwhelming the system, because they have to go and get it and they have to process it.
One of the things that has been done about these individuals is to say they can make two requests in a certain period, which is hard to manage, but at least they've been told. So this allows for other people to make requests. If you have no provision like that, then someone can make a thousand requests a day if they're inclined to, and everyone else is using the system properly.
I'm not saying making a lot of requests is not proper, but it can be an abuse, and this is a way of managing this so that resources are fairly used by everyone and can be available for everyone.