But what if they respond with a snack I've never heard of and interest me so with its description that I've just found my NEW favorite snack.
Additionally what if they inform me about my snack with information that means I can't morally choose it anymore, or that it's dangerous to my health? I now have the opportunity to switch my viewpoint, or reduce the weight that it has in my criteria.
It begins the discussion if you as the person starting the thread are interested in having it and not just looking to be agreed with. I, whether I'm in the minority or not, am always looking to start the dialog. Being agreed with is boring.
You're right. The obvious answer is to never communicate with other people... ever. Communication with other people implies that you are full of yourself and looking to show off to other people how awesome you are.
its the difference between buying a packet of your favorite snacks and telling all your friends what your favorite snack is..
you probably expect them to like the same snack.