There is nothing wrong with posting good information about the real world effectiveness of helmets, I just wanted to remind people of the context. It's like these tabloid headlines "Doing X halves your chance of dieing of Y"; even if the study actually bears out the headline, it's of limited utility to the average punter if his whole life probability of dieing of Y was already 10-5 or less.
There is nothing wrong with posting good information about the real world effectiveness of helmets, I just wanted to remind people of the context. It's like these tabloid headlines "Doing X halves your chance of dieing of Y"; even if the study actually bears out the headline, it's of limited utility to the average punter if his whole life probability of dieing of Y was already 10-5 or less.