We have a right to freedom of expression and opinion (Australia is party to the International Covenant on Civil and Political rights), but there are a number of areas where this can be restricted e.g. using a telecommunications network with intent to commit or facilitate a crime is forbidden.
I think probably writing/hosting the code might be ok (although Github et. al are certainly not obliged to host it), but deploying it to a cryptocurrency network would be where it becomes a problem. I don't think any reasonable person would believe that Tornado Cash wouldn't be used to commit money laundering offences, and intent does matter when it regards facilitating crime. I would also think that participating in a DAO (exercising voting rights or what have you) that controls a cryptocurrency tumbler would count as facilitating crime assuming you didn't immediately try to shut the thing down once it became clear it was being used for money laundering.
But, I am not a lawyer (and this is not legal advice). That's just my surface-level understanding.
We have a right to freedom of expression and opinion (Australia is party to the International Covenant on Civil and Political rights), but there are a number of areas where this can be restricted e.g. using a telecommunications network with intent to commit or facilitate a crime is forbidden.
I think probably writing/hosting the code might be ok (although Github et. al are certainly not obliged to host it), but deploying it to a cryptocurrency network would be where it becomes a problem. I don't think any reasonable person would believe that Tornado Cash wouldn't be used to commit money laundering offences, and intent does matter when it regards facilitating crime. I would also think that participating in a DAO (exercising voting rights or what have you) that controls a cryptocurrency tumbler would count as facilitating crime assuming you didn't immediately try to shut the thing down once it became clear it was being used for money laundering.
But, I am not a lawyer (and this is not legal advice). That's just my surface-level understanding.