At the beginning of the sin-tacular, I asked for people to come up with their own lists. And here they are:
My original plan was to comment on some of the individual sins that people listed, but they're all great - you should go and read them all.
I was a bit intrigued, however, by Chris' comment (or should that be "Chris' Comments' comment?):
Hey, Eric, what are the 7 Heavenly Virtues of Programmers?