Hmm, personally if someone said that to me I would possibly have a go at the shop for being a bunch of Stasi Officers sniffing around in peoples photographs when all they were supposed to do is print them...
Saying that: I have given photographs to a friend in Germany from her Community for her to distribute and print if she so wanted. (As well as to family members) Never ever heard something like that before - and I do have a "All rights reserved unless stated otherwise" in my Copyright field.
I suspect what it shows is how much people trust each other - an obviously it is a lot more in Europe than in the US.
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- if you print a lot, that is possibly your best choice.
