Imagine if the /. community proclaimed a boycott and refused to buy CDs for a month.
What if it's too late for a boycott? I haven't bought a major label CD in years. (I don't pirate major label music either, but I'm sure I'm part of the "decreasing rate of growth == PIRACY!" statistic.)

Since all you can measure through a boycott is the rate of change, you'd be banking on that not enough Slashdot readers hadn't already stopped buying major label CDs already. Otherwise, it wouldn't prove much.