The list author says: "It makes you visible for Cycling at Night.
The car-bike collision rate is several times higher at night than during daylight, but the vast majority of these crashes involve cyclists operating without proper nighttime equipment and can be easily prevented.
Proper equipment makes cyclists visible to other road users and can make cycling at night much safer than statistics suggest that it is.
Traditionally/legally, white lights in front, red lights belong in back, amber, orange or yellow on the side but use whatever you have to just to be seen at night and stay alive. You decide.
Cycling at night is a wonderful experience, and often you have the road all to yourself.
Good luck to you all, and hope to see you in the future.
Imparts important bicycle safety lessons.
from ghostbikes.org: Ghost Bikes are small and somber memorials for bicyclists who are killed or hit on the street. A bicycle is painted all white and locked to a street sign near the crash site, accompanied by a small plaque. They serve as reminders of the tragedy that took place on an otherwise anonymous street corner, and as quiet statements in support of cyclists' right to safe travel.