Concern about hairstyle voting rules

[Kietsu]

Why can we just add Polling ? Like any normal vBulletin boards?

First off: Grammar! Your first sentence means the opposite of what you wanted to say. :P
My first thought when I saw how they were handling the votes was the same as yours, however, I'm fairly certain that vBulletin's poll system limits the number of options your poll can have.