Why do idiots lie about "Starvation Mode"?

When people ask questions like" if I eat 300-400 calories will I lose weight?" and people on here will lie and say "no, you'll go into starvation mode" --THAT'S BULL- I ate 300- 600 calories for 3 months and got down to 94 pounds and im 5'6..I have an eating disorder, but I just don't understand why people lie when YOU CAN LOSE WEIGHT eating under 800 calories a day. people say you gain weight from not eating- LIES - if that was the case, anorexics wouldn't even exist- AND YES ANOREXICS EAT- they just eat very little like 200-600 calories or even less. SO WHY TELL LIES ABOUT STARVATION MODE??