Earlier quoted context omitted.
Especially considering that a polygraph has about the same accuracy as a Tarot card reading.
You and GP really need to read the article fully. Even without doing other research, you dismiss the concept based on a false premise that the article itself clarifies..
So if I was charged with a crime and when offered a polygraph test and I refused it on the grounds that it is unreliable I would be treated as being likely to be "disingenuous" and therefore presumably more likely to be guilty?
Edit: I meant more likely to be thought of as guilty.