[PheonixPharts]

> You're ignoring the reason data visualizations exist in the first place.

My opinion on pie-charts and poor visualization comes from years of studying data visualization, not ignoring it. Would you argue that Tufte doesn't value data visualization since he holds the same views?

[chefandy]

Tufte can back up what he says with reason and examples, rather than repeatedly making the same assertion. Just saying "well Tufte says so" is a pretty blatant appeal to authority.