"Duty" to infringe on the privacy of others, and their rights to be left to their beliefs? Outrageous!
But you're on a PUBLIC messageboard. I'm not infringing on your privacy. I merely posted a link which you've dimissed. I haven't tried to ram anything down your neck. It's a Christians' duty to try to highlight to non-believers the word of god, after that it's in your hands to decide whether to follow or remain the same.