About the same age when Joe Smith started conning people with his "divining rod - hey I'll find your buried gold" tricks.
Shortly afterwards, the fake profit Joe really went off the deep end. So did anyone that followed his folly.
Hey, ther article is only 13 Years old!
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Depending upon the subject/area 13 years is either no time at all (Archeology) or far to removed to be useful (Apologetics). Gender studies and “sexual history” usually runs about 5 years. History tends to fall closer to a “20 year rule” and Biblical Studies closer to a “8-10 year rule”, in my experience.