Comment: But of course! (Score 1) 1
This is news? I'd think this would be obvious; people have been identifying authors based on writing styles for quite a long time now. Probably most Slashdotters can almost unconsciously identify nym-shifting trolls that way.
There will be false positives, though; I've seen someone with a writing style so similar to my own that sometimes I thought his name was ending up on my messages through some technical problem.
BTW, I've noticed that the GNAA trolls seem eerily similar to Rick Santorum. Probably just a coincidence.