The frontend started blocking OFAC-sanctioned addresses earlier this year.
Do you think this logic should also apply to encrypted messaging apps? If you're a contributor to Matrix, or another open source FOSS tool, and you hear reports that criminals are using it (because criminals are a subset of the human population), should you be legally required to take all steps to backdoor it?
If you are aware that your app is being very disproportionately used to facilitate criminal transactions, you would generally be required to take steps to try to prevent or discourage such usage. This is especially true if you are profiting from your app (as the governments think the tornado cash developers were). This does not necessarily mean backdooring the app.
Remember how Kim DotCom went down for operating MegaUpload while actively knowing that one of the bigger usages of the site was piracy, and not doing enough to discourage or prevent such use? The concept here is not all that different.
This is why I would never contribute to some open source projects like metasploit that come too close to falling on the wrong side of the line.
Do you think this logic should also apply to encrypted messaging apps? If you're a contributor to Matrix, or another open source FOSS tool, and you hear reports that criminals are using it (because criminals are a subset of the human population), should you be legally required to take all steps to backdoor it?