It depends on how you parse Snakecharma's sentence. Perhaps I misread it some.
However, your statement is still not true either really Titan.
As a model aircraft (CASR101.075 and 101.400) you can
- operate within 3nm of an airport without permission, but not above 400 AGL
- operate above 400 AGL in open airspace without permission by keeping line of sight and avoiding populous areas.
(at least according to how I read it)