Regardless of the expertise or sobriety of the observer, all are subject to misinterpretation of what they are seeing. Although one can have some outdoor expertise in hunting or camping (observation of nature in this case) they are still subject to misidentification of a subject. One can narrow down the experience to what ever category one chooses, but in the end, when all are tossed in to the same pot, an average emerges. A city slicker can have a legit sighting and a seasoned hunter can have a mis-ID of a creature, it is all up to the specific circumstances of the encounter. As I mentioned to WSA, I'm resisting the urge to over think this question. When one starts putting parameters on the conditions of a sighting, to many if's and but's get tossed in and it just muddy's the issue. One could take it to the extreme I suppose and ask how many hunters have had a misidentification of a Sasquatch on a Tuesday at noon during the vernal equinox on a leap year, but I was thinking more in general terms. Point being, there are thousands, if not tens or hundreds of thousands, of sightings of Sasquatch. I find it amazing for anyone to say that ALL are either misidentified or hoaxes with any level of certainty.