I cannot believe that this thread is still going on, about the appearance of other people. Medical science has yet to scratch the surface ass to why some folks are skinny and some are fat and some are "normal" (although the definition of "normal seems to change from time to time.) There are issues of metabolism, intestinal make up, genetics, and too many medical factors to list on a cruise board. Bottom line, very few overweight folks are "gluttons." In only very few cases is it "their fault.." It's like the fact that I'm short --- and I did nothing to cause this condition.
Cruises (and everywhere else) will be beter places when we start to evaluate folks by what's inside, not outside appearance.