I worked for a small business for 2 years and never got paid super, the person who was my employer was a friend of the family so I wasnt too worried about it, BUT one of the girls who I worked with cracked a big stink and got all the other girls to complain with her to the ATO and someone else?? The employer then lost her house, her business and is still now paying out a huge debt from the fines and court fees and the loan to pay us all our super, so its definately something that is highly illegal and will catch up with them!