Because those organisms (plants and fungi) don’t have nervous systems, thus it is impossible for them to feel pain or discomfort. I eat meat, and even I know that one.
Response to Why The "Fake Geek Girl" Meme Needs To Die:
I completely agree with this article, but I think the approach ought to be pity, not outrage. I was bullied pretty hard for my tastes and appearance growing up, and it feels a little frustrating when people, male OR female, who never had to go through that suddenly decide something nerdy is cool, and that they in turn, are “nerdy”. If you have always been gorgeous, popular, brilliant, well-adjusted, well-liked, and you discover you like comic books, more power to you. But please forgive the rest of us if we bristle a bit when you tell us about it - we took a lot of punches on the nose for our tastes - some of them literal. As for the accusation that geek girls are posers, dudes, pull your heads out of your asses. If you don’t want to hang out with these interesting, uncommon, beautiful women, then please, don’t. I am sure there are lots of people who do.