By Michael Wise QC (https://www.listgbarristers.com.au/barristers/michael-wise)
A long, long time ago Spigelman CJ used a quaint but obscure expression to describe what was required to constitute unconscionable conduct under the Trade Practices Act. He said the conduct had to involve a "high degree of moral obloquy": Attorney-General (New South Wales) v World Best Holdings Ltd (2005) 63 NSWLR 557;  NSWCA 261 at .
Lawyers have ever since been trying to understand what that expression means (and be certain as to its spelling) and whether it is a touchstone of unconscionability. Despite many subsequent cases critical of the use of that expression as either a gateway to relief or as appropriately descriptive of the nature of the conduct, it has simply not passed into legal oblivion.
Hopefully these comments by Beazley P in Ipstar Australia Pty Ltd v APS Satellite Pty Ltd  NSWCA 15 at  will see the expression finally laid to rest.
“Moral” is a notoriously imprecise adjective: “someone under a moral obligation” was the example of conceptual uncertainty chosen in Re Baden’s Deed Trusts (No 2)  Ch 9 at 20. When combined with “obloquy”, which is scarcely a word in common parlance, the imprecision is heightened. To insist on the presence of a “high level” of such an imprecise quality does not, in my respectful opinion, assist in the task of giving legal meaning to unconscionable in s 22 of the Australian Consumer Law. But even if the epithet were less imprecise, there would be no warrant to construe s 22 as being subject to some threshold requirement. Instead the statutory language falls to be applied in terms."