I replied to someone's question on another scuba board that I visit infrequently. Their avatar was a shot of a baby turtle that looked like it was screaming. It looked very familiar. I'm pretty sure I've seen it somewhere.
Would you bother with someone using your photo for an avatar? Would you even care?
Yeah, I've seen that picture in more than one place.
Personally I would be flattered, if someone would want to use my picture for theyr avatar
Karel
As a matter of principle, yes I would ask them to remove it.
People do use some of my images as avatars but have always asked permission first. Then I am happy for it's use.