I'm not going to argue the point that reflectors don't work in all instances, and no I didn't read the whole Sheldon Brown article, but I hope noone jumping into this forum will take the article as an excuse not to have reflectors pointing in every angle in addition to active lights. Many reflectors these days are also built with multiple angles so that the viewing area is increased. You can add them to the front back and sides for a very cheap cost. Reflectors do work, I see mailboxes, driveway entrances, etc reflected back numerous times any night I am out driving. Please use multiple strategies for visibility.