Oh it's conspiracy mongering to question the science behind a popular weedkiller? Wow, didn't realize! My apologies. I know HN is anti science sometimes but this is taking it to another level.
Nobody expressed any objection to you discussing the science. Backing arguments with sound scientific evidence is what we like here.
It was only the allegation of astroturfing that was objected to, which is specifically against the guidelines in large part because it takes discussions in a decidedly unscientific direction.