I completely understand you. I feel really offended by those posts and make me also angry. But please....Don't leave.
You should post in all those threads, the weight table you posted in here. Let them know your feelings and give them your point of view...maybe this way they will react, even if your point of view is different from theirs. They just want to hear" oh, hooney, yes you are so FAT and ugly"...or the contrary...."What are you talking about, you look great." I have the impresion that the people that make this posts are childish, and unmature, and want to get all the attention
POST: Please, helpe me , I feel SOOOO FAT." Got our attention didn`t it!