Okay, while I agree that the term "friendzone" is overused as fuck and often a euphemism for "I can't get a girl to sleep with me to save my life", I think that those who come down this hard against it often go to the opposite extreme.
All other issues aside, it's frustrating and painful when you develop feelings for someone, especially a friend, only to be told that your feelings aren't returned, and I feel that "anti-FZers" often end up communicating the message that it's wrong to even be disappointed by such things.