I kid, I'm awesome regardless of my height. However I have to agree that it definitely is a disadvantage. More so in the club scene than anything else though.
I'm 5'4. I'm fairly attractive, overly confident and I can dance well. Despite this, I find it more difficult to "pick up" women on the dancefloor than in any other situation...period. Having said that, because of my fun an energetic nature, I've been able to "attract" women...in the sense where they'd literally follow me around the dancefloor. But this is much less a physical attraction and more to do with me projecting a "popular" and "important person" vibe. Despite this attraction, many girls still won't dance with me...like I said it isn't a physical attraction, they just try to leech off the attention I create. Lol.
Now, if we step away from the dancefloor, my height disadvantage is GREATLY reduced. I have been rejected on a dancefloor by many women, only to get a hook up or a number from the same women outside, or in the smokers area or pretty much any place where my conversational prowess makes me the alpha male, regardless how puny I am.
So all in all, having first hand experience, I agree that it is a fairly big disadvantage for a guy to be short. Especially in scenes where physical attraction is dominant. As well as I do with women, I strongly believe that more than 50%(at least) of the women that have rejected me, was because of my height.
If you are a short guy reading this, don't feel too bad. As big of a role as physical attraction plays in initial sexual attraction, that's usually about as far as it goes. I've seen hundreds of taller guys have very attractive women dance with them all night, only to ruin all the attraction they built as soon as they walk out of the club and open their mouth. Just remember, there are different "types" of attraction. Physical attraction is only one type and all though it is fairly important (anyone who says otherwise is simply naive), it usually has very little purpose beyond initial attraction.