im not athletic so being able to do daily things like walking is enough to me. i don't like heavy sports to be honest. but to me overall height is the most important. i think this guy didn't make a bad decision. he claims that nobody notices his proportion and that nobody made fun of it. but he's profiting from the pros of being tall
This is a very dumb attitude in the long run, you might get away with not being active while you are young. If you hit the age of 40-50 however, you'll have to stay active in order to keep a healthy cardio-vascular system. Sports keep you young and prevent diseases like diabetes, strokes, heart attacks, cancer and depression.
I can tell you that the amount he lengthened will cause trouble when he'll get older. At the age of 22 you are supposed to be at the peak of your physical abilities, yet he probably already has issues running at a moderate to fast pace.
This surgery has probably reduced his life expectency by quit a bit, keep that in mind when lengthening this much.
Btw, I can tell you that 95% of the people noticed his proportions, no human being has natural proportions like this. While kids would make fun of him, adults usually stay polite and act like nothing is wrong and then they talk bad about him behind his back.
He probably just tries to convince himself that everything is fine although the reality is quit different.
I didn't want to appear rude or anything, this is just my honest oppinion.