I found two active and helpful Facebook pages which were new to me to support people with coeliac disease: Coeliac Disease in Australia and Be Well Gluten Free.
I learnt that a lifelong gluten free diet helps people with coeliac disease avoid complications like osteoporosis and anaemia. However accidental exposure to gluten does not cause long term bowel damage.
I learnt more about the oat controversy. 20% of people with CD react to the avenin in oats, and Australian oats may be contaminated with wheat. So oats remain off the diet for people with CD.
Food and symptom diaries also really help people with CD to work out what they react to.
Please comment if you have found other great gluten free foods!