For starters, there is no logic here. Secondly, if you're on a visit visa, you aren't required to have an exit permit. I've visited numerous times with my family before eventually moving here and we've never had any issues. We've even extended our visit visas and left without issue. Now, if you stay past the visa's validity, you will have to pay a fine. Even though the system shows it's been paid, always keep the receipt handy just in case.