Getting busted by your ISP doesn't really have any new legislation behind it. It's purely lawsuit harassment which has been a thing for a century. American media giants are just greedy in the extreme and ISPs in order to avoid being slapped with lawsuits for aiding and abetting copyright infringement have to nominally comply with copyright holders by "taking action" against identified violations that happen on their network.
Many ISPs don't really give a fuck and they do the bare minimum to comply with the copyright hounds, which for Comcast means sending a stern letter telling you not to do it again, and they give you like 3 strikes before they cut off your service and then send you an offer for a new account when they do cut it off.
Some ISPs are more proactive though and you have to be careful and use a VPN when torrenting.
Of course all this only applies if you torrent popular western media. Torrenting old copyrighted software and games, or foreign media, is pretty much consequence free. I've torrented terabytes of anime and porn over the last 10 years with no VPN and haven't heard a peep from Comcast .