Answering the Bigfoot skeptics

Bigfoot skeptics are taken to task in this article (the bold font is mine):

There are teams of professional and amateur scientists who have reported such encounters (including the Texas Bigfoot Research Center, a network of amateur and professional scientists dedicated to investigating the sasquatch mystery in Texas, Oklahoma, Arkansas and Louisiana), and there are individuals who happen to be anthropologists, wildlife biologists, psychologists, law enforcement and forest service professionals who have reported sightings, but apparently Mr. Radford and others like him simply choose to sweep such reports aside, citing wishful-thinking, misidentification and hallucination as the cause of such reports.
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The Texas Bigfoot Research Center is not a group made up of individuals who, on a whim or dream, choose to waste a huge amount of time and finances, risking personal and professional reputations, to validate an animal that can’t possibly exist. The Texas Bigfoot Research Center continues to maintain that the body of contemporary sighting reports, ecological patterns and relationships arising from the study of those reports, the physical evidence that has accumulated during the last fifty years, and our own personal observations while in the field, all serve to indicate the existence of a living species that has yet to be documented.

There is a large amount of detailed Bigfoot information here at the Bigfoot Field Researchers Organization site. In the "Frequently Asked Questions" section, the site specifically addresses skeptical arguments such as the lack of physical evidence and lack of clear photos. A "comprehensive database of credible sightings and related reports" is here.