Really? Do you have evidence for that?
It was reported in the news at one point in the heat of the issue and I don't have time to go hunting across the net for it right now.
I'm not going to get into an argument in the issue. Your (and others) comparisons of what Sony has done with other companies shows a great level of naivety of the magnitude of Sony's actions not to mention the direct connection of those actions to other legal issues regarding fair use rights plaguing our country at the moment. Sony violated our fair use rights (which are Constitutionally protected), vandalized private property, lied numerous times about it, opened their customers up to malicious attack, and did not learn a damned thing from it; no apology has come from them as they continue to think they did the right thing.
Sure, other companies do bad things too, but the Sony issue was the straw that broke the camels back much like Nikon was with the whole raw file thing. This time however, the Sony issue was less like a straw and more like a 2-ton piano.
You have every right to support the company if you choose to do so but I (and several others) have chosen to put our money into a more trustworthy company.