From my perspective, tptacek was not trying to reignite the Great Internet Copyright Argument for the millionth time, and instead was making a point about what was politically actionable today.
mtgx is coming from a fantasy/idealistic world position and tptacek is coming from a position entrenched in reality.
I mean look at what mtgx said:
"Now. Why is the first point about the size of the industry relevant? Unless you're talking about their ability to bribe...I'm sorry..."lobby" Congress to pass the laws they like? That shouldn't happen anyway, regardless of their size. Laws should be passed on common sense and what's good for the people at large, not based on how big is your bank account."
This is an absurd response to what tptacek said. If mtgx wants to advocate some kind of political revolution that is fine, but it is not an appropriate response to what tptacek is saying about Republicans spending political capital to effect change.
If you can't defend a position, perhaps you shouldn't be taking it.