You have your facts wrong. Canada didn't kick him off the team 'this time around." He bolted Canada for Australia when he was a teenager, in 2001, because the Canadian coaches didn't want him running a business whilst skiing.
Then he won a gold medal in 2006 for Australia.
Also, he seems to be sort of a tight-lipped jerk based on the "evidence" from interview snippets shown to us on TV and in the papers, AND he is definitely made fun of for his spamming. But I'll note that one could be a really jolly spammer that everyone loves, or a sourpuss that has no spamming past at all. In short, people definitely do critique him for both aspects of his personality and past, but his sour attitude is not necessarily linked to or dependent on his past endeavors.
Anyway, don't let the facts get in the way of your awesome opinion piece. It's not like you could have garnered almost all the facts you needed from wikipedia or something.