FWIW I also have issues with Channel 9 news speculating on her mental state of mind.
Whether or not what she has done is wrong, I think the fact that she is under 18 (well under 18 when these original events occured) should be taken into heavy consideration when presenting this "news."
Personally, I think the best outcome for all parties is that this blows just blows over - as quickly as possible.
Unfortunately for her, she's chosen to reveal her real name and will now have to live for it - but this, IMO, does not mean major news organisations should publish (or speculate on) her personal life and mental well-being.