If you would find a recipe for a toxin that is deadly, untraceable and can be mixed together from common household items by a talented 14 year old, it's probably a bad fucking idea to post that to 4chan. The same goes for hypothetical weapon blue prints or martial arts techniques that would allow to kill with a microscopic risk.
Does this count as a straw man argument? Wouldn't the actual scenario would be more like disseminating the information that a deadly toxin that is deadly, untraceable, and can be mixed together from common ingredients exists, not the recipe itself.
It's important that people be aware of the risks they face, and seeking to silence that conversation is not helpful. If anything, it will create an environment where any perpetators might go unpunished because it's just implausible they did what they did.
You mean like guns, toxins, and martial arts?