I have always been very interested in "portraiture" in the broadest sense although I shoot "landscapes" 99% of the time.
So I'm now in the process of taking many more portraits and candids of which I would like to place in the public domain via the internet, an exhibition etc.

I'm mostly interested in the experiences, feedback and responses that people have had towards "publishing" images of family, friends, relatives and of total strangers, if it's ever happened.

So, when is it ethical or unethical to take images of others with the clear intention of placing them into the public domain without their consent, permission, or approval and that are not neccessarily flattering etc.?