That's interesting history. In the American Colonies prior to the revolution, juries would often find defendants not guilty of unpopular laws, but you are correct, the verdicts had no effect on the law, which remained the same.
I feel I should be more clear about the point I was trying to make above -- jury nullification in the United States falls largely into two categories, a pre-revolutionary predisposition to stick it to King George, and something I didn't mention but happened plenty in the South, a hesitance to convict whites of violence against blacks.
In either case, jury nullification is likely only when a populace is on the verge of rebellion and the crimes are seen more as political issues rather than real crimes (pre-revolution example), or when the law runs up against deep seated widely accepted cultural prejudices (civil rights example).
For geeks though, to think that JN would apply in a file sharing case, or one in which a reporter uses the <a> tag to link to private materials other people hacked, or any of the many computer or data related litigation topics we see here, is pure fantasy because 1) we are nowhere close to any sort of open rebellion and if we were, it probably wouldn't have much to do with the digital world; and 2) geeks are far from being wholly accepted as part of the cultural norm, and as much as we've taken ownership of the terms "geek" and "nerd", most non-geek people don't, deep in their heart, see those labels as a badge of honor.
Yes, there are jocks who call themselves "football geeks" but it's all sort of tongue in cheek and they've certainly never experienced the derision most people hold for us just barely bubbling under the surface. And even if it isn't derision, just try talking about something interesting or exciting to a geek, to anyone else, and you get at best a sort of forbearance, like they'll accept your annoying characteristics so they can get help with their computers. In most localities, geeks aren't going to get the whole-hearted undying support of the wider community. We can get toleration, and perhaps be thanked at times (though I think people forget just how much technology does for them), but that's it, and what that means is, jury nullification on geek issues will not happen.