as a general rule of thumb, I don't think these kind of leaks have any additional long term effect on our war mongering efforts.
Whatever war crimes, murder, and torture is buried in those reports, trust me the taliban and afghanis were already hip to it. They're neck deep in this war, and they know first hand what is going on. They're already pissed off about shit that they either already know first hand is going on, or where there is already a widespread perception of shit that's going down. When some afghan gets tortured, or some wedding party bombed, that crap ain't exactly kept a well-guarded secret in afghan society. People find out about it.
The only people who might be clued in to what the f is going on over there through these leaks, is the clueless american public. The media has ignored this war for 8 years, and I doubt any message board dupe or american citizen is hip to the crap that's going on there.
So I'm down with the Daniel Ellesberg school of thought. Government leaks don't hurt anyone, except the architects of the failed policies that are already in place.