"It is a great way to get these people on board. You could even give them cute nicknames and lump them all into a big group of nefarious legislators who are obviously both stupid and cunningly evil at the same time."
I think if you will check the thread more carefully, you will find that it wasn't a FairTax supporter who tried to position this difference of opinion as a "good vs evil" confrontation.
At the same time, FairTax proponents totally ignore misstatements and obvious falsehoods that are made by other proponents, making the debate too muddy to even follow.
I don't know about "evil" but there are plenty of disparaging comments made not about the points that someone raises, but about the motivation for daring to question the Plan at all. It is an "anything but the IRS" mentality and I think there are many possible plans that would be worse than what we have now, so I'm not willing to jump on the "Anything But" bandwagon.