[tonyedgecombe]

Shipping proprietary software to end-users is unethical.

The user wants to use the software, the developer wants to provide it. I'm really struggling to see what is unethical about that.

[rudilee]

Maybe what he means is that it's unethical to provide software to user without access to the source code, so in case the developer go out of business the user is left with software that the user couldn't update by themselves or someone else they hired.