Would using AC change your measurements, given that it's AC-current from amplifier to speakers, and not DC? (Just for my edification).
And while I would never attempt to use coat-hangers myself, I do remember that gizmodo-article, and that they twisted and soldered four coat hangers to create a speaker cable. Maybe they realized they would need more than one.
Go to next page of that thread and you see him saying he is a (medical) doctor and that it was his brother who was an engineer and created the coat hanger speaker wires. That is the sum total. From this one anecdotal post, the thing grew into fact: "coat hanger beats monster cable." I challenge folks to try to make a speaker wire out of coat hangers that can be plugged in and out quickly in a blind test. Not saying it can't be done but it is hard. For one thing, if the coat hanger is conductive -- and not all are -- how do you get a pair that doesn't short out as the two wires cross when you move them? Soldering will be a total pain too as this stuff is not made to accept solder. And they are stiff as heck.
Again, this could be done but the proof that it was done and was done properly takes a lot more than hearsay in a forum post. Everyone wants to believe its message so it has become "fact."