I'm pretty naive, so please help me understand. I have exactly one AU on my cards, my husband, and he is on mine.
Why would you have 7 AU's? Are these people unable to get their own cards due to bad credit? Wouldn't that be a bit cautionary to you? Otherwise why would they not want to earn their own points/cash back on their own cards and instead let you reap the benefits of their spend?
Again, sorry if I sound like a moron but I'm truly mystified.