That brings up a moral question: is it okay to do evil things in order to make a living? Ken Lay thought so. So have a number of other corporate executives now laughing at us as their bankrupt (former) companies die behind them. All that seperates this Australian spammer from that gang of criminals is scale, not ethics or motivation. The motivation is, of course, "make lots of money", and the ethics is "If it makes money, it's ethical." This is ethically indefensible, whether you're Ken Lay or a disabled person in Australia.