A small point, perhaps, but a useful one is that many of the authors of health scare stories and claims and bad science in general do have twitter accounts.
They (and their followers) may find it very useful to be informed where an article they authored is being discussed on forums such as this.
They may or may not take any notice (or even have the time) but it can't hurt to let them know via twitter than something they reported on is being discussed ....