scary, isn't it ? worst case scenario, though.
G is nowadays an underground thing here and there are only small groups of people pursuing now, from what I can tell.
Australian laws can ruin your life if you are the wrong sort of person and exhibit socially-violent and contemptible tendencies BUT if your motives are not primarily criminal then the authorities can be lenient and considerate.
it's on a case by case basis.
at least that's how I think it works - or how it should work ... it is probably about how many people could be harmed by your actions, to what degree and if there is any financial motivation (greed).