Christ some of you lot are dickheads.
1.There are very comprehensive Volcanic Ash policies and Day of Ops protocols at JQ
2. Airline policies can differ due aircraft payload/range capabilities and other day of ops operational reasons for which the majority of us aren't privy
3. JQ is no less safe than Qantas in any respect, so just try for once to get past your pathetic attempts to discredit your professional colleagues and move on to more important things in life. Like having one.