Conspiracy to commit murder is a crime in itself though, as is offering to murder for hire, conspiracy to commit copyright infringement isn't AFAIAA. Also copyright is a tort, murder is a crime. The part about you being asked to take down information is also not analogous.

A better analogy IMO would be a website that gave you directions to get information as to where there was a gap that you could use to access a private beach, both are giving information that allows you to later commit a tort. Such a website would be any search engine.