Comment by asksomeoneelse

I don't want to say "that's an ad", but I can see an obvious conflict of interest there.

Also, the methodology just compare the true-negative detection rate for known negative, it seems?

> "Proof of Human identified 99% of automated sessions"

> "We measured detection rates for automated sessions but did not evaluate false-positive rates among human respondents."

Trivially easy measure to game if so. "isHuman(x) = return false" gets you a 100%.