I just spotted the following ad on Gumtree:

http://www.gumtree.com.au/s-ad/scarborough/surfing/surfing-lessons-perth-beware-of-cowboys-/1011468165

Its a pretty interesting ad to post on an online trading post, taking a direct and almost personal swipe at his competition

He's right though, even if it is bad form to so openly slam your competitors.

Still, I wish they'd all just dissapear.

Hardly a competitor when it appears the cowboy is operating illegally. Has every right to slam him imo. If this other dudes operation was legit, then he would have a fair case for defamation and whatnot but it looks like he might not have a leg to stand on!