when you do it:
Usually, you don’t welcome a nuisance lawsuit, because it’s a nuisance. It consumes time. It costs money. But this is a different matter in light of one word: discovery.
If Mann sues us, the materials we will need to mount a full defense will be extremely wide-ranging. So if he files a complaint, we will be doing more than fighting a nuisance lawsuit; we will be embarking on a journalistic project of great interest to us and our readers.
Seems Mr. Steyn REALLY got under the skin of Mann; he do have a way with words:
...Michael Mann was the man behind the fraudulent climate-change “hockey-stick” graph, the very ringmaster of the tree-ring circus. And, when the East Anglia emails came out, Penn State felt obliged to “investigate” Professor Mann. Graham Spanier, the Penn State president forced to resign over Sandusky, was the same cove who investigated Mann. And, as with Sandusky and Paterno, the college declined to find one of its star names guilty of any wrongdoing. If an institution is prepared to cover up systemic statutory rape of minors, what won’t it cover up? Whether or not he’s “the Jerry Sandusky of climate change”, he remains the Michael Mann of climate change, in part because his “investigation” by a deeply corrupt administration was a joke.