This is pure semantics but are you really comfortable calling anyone who doesn’t want a flat tax a socialist? Someone who doesn’t want a flat tax could have voted for any party in my country.
I was being a little facetious, yes, but if someone to be actually sickened by ebaysuck's position then that constrains my prediction of his beliefs a little more than just not wanting a flat tax for e.g. practical reasons. In other words, I don't think just anyone who doesn't want a flat tax would say what xtho said.