"If you are a subscriber then the Digital Economy Act means we will have to pass on copyright infringement reports we get about your IP addresses; count those reports; and maybe take measures to block or restrict your internet service. If you are a communications provider or service provider we do not have to do any of those things as they only apply to subscribers."
Although it's worth noting this ISP doesn't require you to have unsecured wifi to be a communications provider: "A communications provider is anyone that is providing a communications service to anyone else, whether other people in their house or office, visitors wanting to check their email"
Sounds like just about anyone qualifies as long as they have a wifi network and go to the effort of telling their ISP they're a "communications provider".