I, too, am kind of fed up with the over-"visiting". IMHO, I think the introduction of the single-step "visit" is the cause, as opposed to the conscious "drop"-"grab" mechanism, which requires more thought. Anyway, I think the code of etiquette should be geared toward the owner-prescribed goal of the individual trackable in question. If the trackable is in a race that factors in unrestricted mileage, then, by all means, help its journey with accruing every nook and cranny of your geocaching path, but, for others, it is just white noise. As far as my own habits wrt trackables, I only "visit" caches with trackables that have missions related to the location, and I try to capture a photo when logging the visit.