He's been around forever hasn't he … I remember him at Howard's jumped-up "constitutional convention" in the 90s, he was notorious even back then.
Although perhaps Katter's not unique, and nowhere near the worst of a bad lot, when it comes to ten-gallon-hat wearing squatter kings. Check out what David Connolly, the bloke who the CLP has recommended as the new Territory Administrator, likes to put on his Twitter feed.