There are some problems with this comment
"In what way is a link different to a link-to-a-link? They have the same net effect. I certainly wouldn't want to be explaining to a judge "no, yer honour, it's not a link to copyright material, because it's a link to a link to copyright material, ok the net effect may be the same, but I'm sure you'll find that I'm not guilty because of this minor technicallity.""
Technicalities are what make the legal system a wet dream for law students. People have got off more serious charges than linking to a link to a link to something that somebody says belongs to them, with a much more spurious defence.
Whether our "justice" system would allow the defence is another matter, but I'm sure that lawyers everywhere would spurt all over their legal briefs at the thought of the money to be made arguing it.