The first person pov is one person telling the entire story, by themselves so we only know their thoughts and actions. Third person pov is like a camera, it makes sure we have info from all pov's so we know what everybody is thinking and doing. Third person pov can also be thought of like "hey, the narrators telling the story."
There is no text proving they are right or wrong or a trusted source of information or if they are still publishing. They are called the American vegan society so you can assume they are all about veganism
