It happens quite a lot. There are different perspectives on the obligation to pay condo maintenance fees. Some see it as an abstract concept, others see it as a condition of owning a unit, still others see it as a convenient source of cash for expenses that have nothing to do with the property or its common areas.
The maintenance fees are critical for any condo situation. Very easy for the money to fall through the cracks and then when a planta goes, there's no money to repair it or replace it.