And your comment about "to put your own thrills above the enjoyment of other users" has me confused because isn't that what you are advocating when you want to keep boaters off the river completely? At least the boaters only inconvenience a small percentage of the anglers in the lower end of the river while you want to ban all boaters.
Not sure where you saw me advocating a ban on all boaters on the river (red herring?). Bans are only necessary when people cannot make the right decision for themselves. I only mentioned that the running of a jet boat up to Tamahi, while perhaps possible, may not necessarily be the best idea (just because you can doesn't mean you should). I am also intrigued by both you and JC's comments about his parents, since all I said was that I blame them for his callous attitudes about his exercising his so called boating rights at the expense of other users enjoyment, and his characterizing of anyone without a jet boat as just "jealous" of his possessions and living "dull boring lives" if they are not running jets up to Tamahi. For this to be insulting, you would first have to admit that there is something wrong with his attitudes and comments, which you both are trying to defend. hmm.
Just to clarify, an ad hominem attack is criticizing the opposing person in a debate rather than addressing the issue at hand. JC, instead of just explaining why jetting up a small river like the Vedder (while a larger river than say the aforementioned Allouette and Norrish, the Chilliwack river is still small compared to rivers like the Harrison, Pitt, or Lower Stave) through a run while fisherman are trying to fish from shore is acceptable, he attacks the other posters as "jealous" and "boring." THAT is ad hominem. Had he stuck to defending the action instead of insulting the other posters, he would not be committing the fallacy. Since I, when blaming his parents for not teaching him better, was addressing his attitudes and comments, not the running of the river, my attack was not ad hominem, it was a critique of his rhetorical methods and their inherent logical fallacies, skills his parents and teachers should have done a better job teaching.