Hi Ray, even though I've been actively researching through books, as well as actively pursuing my search in the field for more than a few years now, even I'm not 100% convinced that bigfoot exists. However, with the amount of evidence that has been brought forth, most of it anecdotal, as well as things I have experienced that suggest something is out there, I can't deny there is a good possibility that it does exist.
When it comes to tracks, you're right, there are a number of them that have been faked. Some of those faked tracks are quite easily recognized, while others are pretty hard to discern. Usually when someone creates a hoax, such as making fake tracks, their main motivation is to fool someone and get a kick out of doing so. For this reason tracks that appear in areas that is easily accessible and visible to the general public are automatically under suspicion at the get go for me. However, if you find tracks say several miles or more into a heavy forest that are nowhere near a hiking trail, and the odds of anyone ever finding them are near nil, what would be the motivation for someone to fake these?
As far as the numerous reports, it is hard to believe they could all be lieing. I'm sure there are a good many that are nothing more than fabrications, and some are misidentifications, however it only takes one true report to make the existence of bigfoot a fact.