Just let anyone scrape it all for any reason. It’s science. Let it be free.

Let’s say they were organizing using telephones instead. Would you want the telephone providers to proactively listen in on their conversations and cut them off based on content? No. You get the police or FBI to investigate and hunt down the people, possibly with warrants obtaining information from the telephone companies, and target the people doing the crimes.

I feel it should be exactly the same with ISPs. The ISP shouldn’t be doing the policing, the police should be doing the policing. The ISP’s job should be passing bits from MAC address A to MAC address B, nothing more.