> unless part of some network

Totally agreed. Even if that network is as simple as posting something to social media and watching it go viral, it's still a network.

I thought about breaking commerical interests out separately in my post, but didn't want to overcomplicate. An example would be the V888 form in the UK, which allows you to request the details of the licenced keeper of a vehicle, as long as you can show "reasonable cause". The reasonable causes are, of course, mostly commercial.