These are guys who have the notion that posting photos with hot, half-naked girls all over them on their online dating profile increases their sex appeal.
They have had some experience with this in real life.
When they have been able to demonstrate their virility through putting themselves around hot girls at parties and such, they have discovered that this led to even more hot girls wanting to be around them.
If you are worried that using your true height keeps you from showing up on most searches that women conduct on dating sites or as a potential match in her daily allotment of matches, you are misinformed.
Most women are happy with men who are taller than them.