Nate Silver sighs:
[Phil Jones, director of the University of East Anglia's Climate Research Unit] is talking to his colleagues about making a prettier picture out of his data, and not about manipulating the data itself. Again, I'm not trying to excuse what he did -- we make a lot of charts here and 538 and make every effort to ensure that they fairly and accurately reflect the underlying data (in addition to being aesthetically appealing.) I wish everybody would abide by that standard.
Still: I don't know how you get from some scientist having sexed up a graph in East Anglia ten years ago to The Final Nail In The Coffin of Anthropogenic Global Warming. Anyone who comes to that connection has more screws loose than the Space Shuttle Challenger. And yet that's literally what some of these bloggers are saying!
The key to these bloggers' mentality is simply to find some tiny thing and focus all attention on that in order to persuade people that the bigger reality is untrue or irrelevant. This is not an argument; it's a technique. It's a technique to persuade people not to examine all the evidence, since the source of the evidence - secular humanist scientists - are evil suspects and against God and in favor of making your gas bill higher.
You can't actually persuade people that way, of course. But you can fortify their resistance to examining all the evidence.