[wcarron]

It is unethical because there's no "opt-out" option. You have taken a photo of me without my consent, used it for intents to increase profit despite not having my consent; and furthermore, attaching personal data to it is Orwellian and a complete invasion of my privacy. I can go out in public and have nobody know who I am. A retailer should not have access to my identity (since they can cross-reference other data sets to deanonymize me)unless I interact with them and hand over information of my own volition.

[ffriend]

As far as I know, storing personal data - including photo, name, email and sometimes even IP address - without explicit and clear consent is strictly forbidden in most countries, at least in EU.