You don't say...
"It seems just as easy to draw the conclusion that mere use of an IP address shouldn't be grounds for armed police to raid a person's home"
Plus 100... I'm old enough to consider the provision of an unsecured network a public service; a matter of good neighbourliness. Of course I have a second, secured, network for our own private use.
Definitely a case for severe education of law enforcement; the cops in this raid clearly acted as though he had already been convicted - note, it was him they arrested, not his wife, they *assumed* it had to be him. Lawyers who pursue file sharers are already learning this the hard way. Lawyers who pursue cops are probably already salivating.
Mike


