As I'm sure you are aware it was in response to your false claims:
"david k seems to think it's perfectly sensible for pedestrians to wear helmets" and "There's no absurdity or pointless indignity to which they are not prepared to subject cyclists in the name of "safety".
Difficult to take your comments seriously when your only contribution is to make false claims about other posters, its such an obvious tactic hence the "sigh"
Now, as I've said earlier, you lose your respect immediately when you make these false claims, if you care to read other posters comments on this thread you would be in a better position to make a reasonable contribution, but when you sink this low theres really nothing I can do but continue to sigh.