From your question I assume you know that both of them are bad. But yes, undereating is worse. If one overeats, at least the brain is sufficient in glucose and can still function. It just doesn't know what to do with the extra glucose. And brain needs glucose and carbohydrates (120g a day) to think.
If one undereats however, the brain has insufficient glucose/carbohydrates and cannot think. So even if he/she tries to get cured by going to the doctor, it will take a much longer time because the brain cannot think at first on where it should put the medication to. An overeater's brain will know to put it to the liver.
Walking then eating if you eat first then you feel worse than when you walk first burning more calories.
Overeating hurts the body. Independent research has shown that eating too much will compromise the body's DNA and overall metabolism. The body is made to handle many things, however overeating is something that will hurt it more than anything except alcoholism and drug abuse.
The Holocaust.
Eating too quickly may lead to overeating because it takes time for your body to send signals to the brain that you are full. Eating slowly allows you to better recognize these signals and prevent overeating. So, yes, eating faster may make you feel full slower, leading to potentially consuming more food than necessary.
Eating goat meat is neither better or worse than eating any other meat
Yes.
It is no worse than eating it cooked. The noodles are high in carbohydrates, so be sure to have some protein and vegetables with them.
Bulimia is an eating disorder that entails eating large quantities of food, or at least more than usual, and inducing vomiting, to avert weight gain. Doing this often could have lasting effects on the esophagus. Where as, obesity it having excessive weight, this is a stage beyond overweight, and is equally as unhealthy as being bulimic. The association with obesity and bulimia is that one prevents the other from happening. But both are unhealthy.
Neither is "worse" in comparison to the other. Both are highly dangerous and destructive to one's body, with numerous physical and mental health consequences.
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If you are right-handed then eating with your left hand might make you eat slower than you normally would. This would prevent you from overeating because you would take longer to eat, thus causing you to lose weight. However, you will need to do more than just eating with your left hand to lose weight.