To start, I don't see why people jump the shark and call Quora an unreliable source. What you're supposed to do is check the credentials to see how reliable the answer provided is. If it came from a mofo with a doctorate in the field matching the needs of the question asked, then that's an instant reliable answer; no need to be conspiratorial about that.
I have pointed out beforehand that the question came from high school physics, which I've added that high school stuff is prone to juxtaposition unlike university resources and research studies. After all, the purpose of the blog I've made was to show that the idea of ripping an arm off isn't exactly a one-size-fits all deal, and I find it questionable how the OP just picked an answer and rolled with it. Throughout the blog, I have pointed out a variety of sources, including a Stackexchange discussion about the same topic, the drawn-and-quartered execution method (real-life instances of the feat in question), and the same university source that used the 200646 kN figure used in the first blog linked. It was not meant to be used for cherrypicking; it was meant to be used for nuance.
I also think it's a little questionable that Vzearr claimed my calculations are wrong when I properly used elongation, which is the mechanical term for how far something can go past its original length before breaking. As such, it would make logical sense to use elongation to determine the maximum distance of which a force would have to been applied for before the object breaks. If a 10-centimeter object has a 50% elongation, that means it can go up to 5 cm before breaking. Typically an arm is pulled from one direction, meaning the force would have only gone in one direction. You're not going to get the shenanigans you get from pulling from both directions. Keep in mind, tension (the tensile strength stuff) is used because the feat typically involves pulling limbs outwards, not sideways like you're using a cheese grater.
For the record, I used the muscle lengths as that is the direction the force is acting on. I obviously didn't use the joints because frankly, anyone who practiced contortionism can pop a limb out of its joint including shoulder joints.
Ultimately, I think this stems from poor readership that led to cherrypicking, and I sincerely hope you guys actually read into it more.
Tl : Dr Read into things further than the first paragraph. You missed a whole buncha stuff.