Ad hominem: "You're just stupid."
Straw man in response to "Proprietary software is unethical": "I disagree with your claim that capitalism is wrong. Capitalism is not wrong because of reason A, reason B, and reason C."
Ad hominem: "You're just stupid."
Straw man in response to "Proprietary software is unethical": "I disagree with your claim that capitalism is wrong. Capitalism is not wrong because of reason A, reason B, and reason C."