Where is your dissertation post about the evils of soda, and why we should all be mobilizing against Big Tobacco?

You say you wish people cared more about those sorts of things, yet here you are, chastising people for talking about Twitter.

Why aren't you leading the way by being the change you think we all need to be as well?

It seems you're not nearly as passionate about the evils of smoking, guns, etc, as you think we need to be.

So maybe go and do the thing you're telling us we should do, then get back.