Going after them is, in effect, going after your representative through a proxy. A big, giant, 500 lb gorilla proxy. Keep in mind that GoDaddy is same company whose CEO responded with "I'm not sorry" to the outrage over his elephant hunting incident [1]. I think it'd take more than a half-million lost domains for them to change stance here.
I'll eat my words if this boycott results in any actual effect on GoDaddy's stance, but this is such a long shot that it seems irrational to even pursue. Sun Tzu would not approve of this tactic.
At any rate, I strongly encourage everyone I know to move away from GoDaddy, just because of their business practices. This won't change that. If you have domains on GoDaddy, move them. Please. They're a horrible company with horrible practices, and a horrible product.
1 - http://ecocentric.blogs.time.com/2011/04/04/godaddy-ceo-on-s...