Dick, since it's on here it is of course only a rumour.
When you write about a major campaign, out in the wider world, I wonder how easy it would be to run into trouble with this. I have always been advised that in cases like these one should restrict oneself to illustrating the point purely with one's own experience and not advising others on what they should do. Asking questions is alright of course and the questions can be quite pointed. Keeps you out of the courts.
Certainly in this jurisdiction, careful factual recall and carefully worded questions can go pretty close to the bone and still remain legally untouchable.
Based on the questions that I have asked crooked lawyers in the past I can be pretty confident in this.