Thanks a lot for the answers. Again, I learnt a lot =b

I cherished the ability to select persons from my contact list to share with WhatsApp or not. So I selected people, were I was pretty sure they already joined and didn't select people were I knew / suspected they cherish their privacy over the 9ct./sms.

Finally a link via the German site wirres.net to pando daily and WhatsApp's take on privacy.

icke