I don't know the details of the particular trading in...

I don't know the details of the particular trading in question.

Do you know the details?

Simply posted an FYI to fellow traders as a matter of interest.

Look it up, apply to your own circumstances.

IF it happens somehow that ATO does take a closer look at your trading and it is reasonable to believe that the loss was incurred solely to make use of the tax benefit they will not allow you to claim that tax loss.

A cut and dry case would be if you sell all your shares.... then buy the same or similar amount back "shortly" after with no material changes to the company or personal circumstance that can reasonably have changed your outlook and especially if you then continue to just hold the shares.
Also if this occurs around the end of the tax year it is more suspicious.

If you normally buy and sell the share during the year then there should be no problem.

If you buy and hold however.... and simply do a "wash sale" come tax time..... different story.

There problably won't be a problem anyway... but just be aware.