C'mon folks,

Damage limitation has to be the first concern?

Supposing the guy had been connecting somewhere and distributing kiddie pr0n?........... guess where the trail would lead back to?

ric-o my guess would be that the network was unsecured.......... at least that seems to be the usual target of wardrivers. They don't seem to want to make life complicated for themselves?

Well, my contribution to the "novel" solutions would be to anonymously contact the blog sites that were spammed with the guy's details. If the guy knows how to use WiFi I would bet he has it himself, so go use his WiFi system if it isn't secured

As the guy was advertising some sort of drugs, I guess that some Federal Agency could set up a suitable "sting"? It is probably true that they would not be terribly interested other than they have an easy "kill" that would require little or no technical resource..........

Like just go to one of the spams and order some gear?