Regular users in Sweden are in danger because a corporation needs to fill their pockets. Studios are suing your ISPs to get to you.
Use I2P. It will hide your IP address (among the many things it can do), afford you more privacy and allow you to torrent freely, even without a VPN/seedbox. The catch? You’ll have to add the I2P trackers to your torrent.
I believe I2P is the way forward for piracy and I look forward to it getting bigger than it already is.
Does being a node open one to liability?
Unless there’s a zero-day, no. All traffic is encrypted and it should be impossible to correlate traffic chunks to identities like that
No, since they don’t act as exit nodes (they’re called outproxies in I2P), unless you specifically configure that. It’s like running a Tor middle/guard relay. I2P was specifically designed that way, so everyone can use I2P and be a node by default without causing any trouble.