I doubt these are a bunch of steroid users. A few maybe, but overall their hard work and dedication is impressive. Most notable are the people over 32. On the backside of age 32 your skin cells quit regenerating, and people who lose massive amounts of weight are generally plagued by loose skin issues. Cosmetic surgery is the only solution.
There's always going to be someone criticizing posts like these. I say well done to the people above. Although happiness is not to be found in body image alone, the amount of discipline and sacrifice it takes to get there is amazing. Well done!