I agree that it is infuriating. I think the reason that there are so many reversals has to do with the fact that, if they weren't considering reversing the decision, the Supreme Court might not try to hear the case in the first place.
As someone who grew up in Floyd Landis' hometown...German Mennonites are not really comparable to Amish when it comes to the use of computers and even some of the Amish themselves have fine computer skills (using them at the library, just not at their home). Landis' could very well have had the same level of exposure to a computer as a child as any other American his age.
Legal experts are baffled by the ruling. Internet law professor Lilian Edwards, of Sheffield Law School, told ZDNet that companies that operate a public Wi-Fi hotspot should "not be responsible in theory" for users' illegal downloads under "existing substantive copyright law"."
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