Also, taking a snarky, passive-agressive tone to people making legitimate criticisms makes me not trust the list at all.

By saying "this is ethical, that is not", you are assuming a position that must be defended.

edit: I am contributing to the cause. Ethics is necessarily a conversation. By minimizing and handwaving away the part of ethical decision making that actually matters, you're doing more harm than good.

We don't need users to blindly use services somebody has slapped the "ethical" label on, we need to inspire users to bring ethics into their decision making process when choosing software services.