[ptoo]

To me, that's even further evidence that both race and height are totally inconsequential. That fact that these things can bestow social advantages is no reason to view either of them in a positive light.

Racism is certainly bad and should be discouraged. Somewhat controversially, apparently, so should heightism.

[lotsofpulp]

Height (and the other attributes that go with it) generally confer an advantage in a physical fight.

[brandall10]

How is that valuable in a modern society that outlaws violence of that nature?

Or it is simply that you can physically intimidate people to get an upper hand in situations where such an upper-hand shouldn't be given... just because. How noble. What a useful and admirable trait to encourage.