On a lighter note than usual, anyone who reads this blog knows that I am a big fan of Richard Dawkins ... and I love his site, which provides a lot of relevant information and some interesting discussion involving various well-informed people. On the other hand, a few of the regulars there are as stubborn as mules or as crazy as loons. Sometimes both.
Anyway, now and then what starts out as a sensible thread turns into an utter train wreck involving hundreds of not-very-helpful comments. Even sensible commentators get attracted by the wreckage like proverbial moths spiralling into an equally-proverbial flame.
Here is a good example of what can go wrong.