I posted the Lucas Brunelle video last night. I guess you might say I admire his riding after a fashion, but there's no way I'd ever ride like that. I obey the traffic signals and mostly ride legally, at least as legally as most people drive, anyway, and probably more so -- I'm one of those ninnies who comes to a complete stop at stop signs, even when I'm driving, and I usually like to be the good example. I always watch for traffic and take the right of way only when it belongs to me.
We see the coolness of alleycat races as shown in Brunelle's video, but sometimes they result in tragedy. 29 year old cyclist Matthew Manger-Lynch followed the field through a red light and was struck by an SUV. From the article, it sounds like Manger-Lynch was generally a responsible cyclist but got caught up in the heat of the moment as he approached the finish in the alleycat.
Via fixed gear and mentioned in several other blogs.