I cant wrap my head around people claiming that this surgery needs to be done for yourself not for other people. How delusional are you? Nobody would so this if they were the last person on earth. The whole point is to be taller relative to others to have an easier life, have a better work life and get more girls. Yes you do get more girls up until 6'5. Yes you do have to earn more to make up for your height up until 6'5. This is life, it isn't fair, its fked up but it is what it is. Sure there is a diminishing return after some point. Can you be happy and successfull at 5'4? Yes. It is irrelevant though. That same guy would be cruising through life at 6'5 with a fraction of the same effort if he could pull it off at 5'4. Did quad lengthening for a 13 cm.
I agree with you on the first part. Everyone does this procedure because of other people, not for themselves. But I disagree with 6'5" being the optimal height.
As body builder said, after around 6'2-6'3, height becomes a drawback. If you cannot get laid at 6'3", you will not be able to get laid at 6'5". If you cannot get a promotion at work being 6'3", you will not be able to get it being 6'5". Height is not the issue by that point.
If you insist on getting a surgical procedure, but you're already 6'2"+, you are better off getting a rhinoplasty, double jaw surgery, hair transplant, implants/fillers, depending on what your "weakspot" is. You will receive far more benefit having a full head of hair, having a nicely shaped nose, or a strong jawline than you would more height. And all of those things are far cheaper and less recovery time than limb lengthening.