If some brave soul has the courage to put a stake through the heart of Washington’s regressive tax code this Halloween, we’ll remember it this way. — Like most tragic monsters, Washington state’s regressive tax code was inadvertently spawned through the best of intentions. In 1933, a Depression-weary electorate overwhelmingly passed a statewide income tax to ensure prosperity and economic growth for all Washington’s residents. The State Supreme Court then stepped in, and proceeded to trample the…