Aaron Swartz lists the blogs he wished existed, and includes this:
Evisceration Quarterly: A daily selection of the finest in insults, takedowns, and general argumentative evisceration. The motto: teaching you how to think by showing you how not to. And, to not be entirely negative, the occasional model of clarity. With special blogging consultant, Brad DeLong.
I agree this would be a hilarious and perhaps educational read. Someone should take up the task. We can't, for example, let gems from Lee Siegel fade into the abyss.