While you may be competitors with each other, you are also members of the same industry - with more interests in common than not. If the industry suffers as a whole, you all will suffer individually. While there is nothing wrong with healthy competition, knives in each other's back will hurt the client respect and credibility of all. Inconsiderateness on the part of an outfitter or his or her clients could ruin the wilderness experience for the clients of all other outfitters. What goes around comes around - don't ignore good river or trail karma.
Promotional materials are unrealistic in their representations.
Promotional materials are intended to attract potential clients. Too often such materials make representations which are unrealistic and can set the stage for a subsequent lawsuit. Such materials paint an inaccurate picture of the risks involved in your particular activity, and may attract clients who should not participate. Clients need to be aware there are inherent risks in the particular activity they may pursue. Unrealistic promotional materials undercut the defense that a client assumed the risks inherent in the activity because such risks are minimized rather than acknowledged.