The ISPs are a natural monopoly, or oligopoly at least, because it's expensive to lay cable for each home. Their business is quite profitable even when they don't get to control their customers traffic.

Yes, I think it's the same in here, you have been able to ignore the letters without any consequence. Also from what I hear, the letters have been very inaccurate. I doubt the IP based proof would hold in the court of law.

How is the anti-P2P enforcement these days? I think there are companies gathering bittorrent swarm data and selling it to lawyers interested in this sort of bullying. In Finland at least you can expect a mail from one of them if your IP address turns up in this data. However I think it is mostly focused on video and music piracy.

Since the Tapani storm of 2011 there's been a massive undergrounding of the power grid, so much of the rural areas are now also quite safe from outages. But there are still a lot of the old type of grid left and the economics for undergrounding those are increasingly unfavorable. Perhaps grid connected batteries next to the transformers might soon be more economical for many of these areas. They could serve other functions beside backup power, after all.

Your sound card works perfectly.