It is quintessentially Australian to detest dobbing.
Time to stop protecting boozy mates, Sydney Morning Herald, 4 November 2004
In a nutshell, in Australian English:
dob - To tell on someone.
dobber - someone who dobs you in
dob-artist (children's word) - dobber
Australians do not like authority. Australian do not like dobbers.
Buy a fun and scary Australian children's book - See http://www.davidjdownie.com