The reason why I force users to use all 3 votes is because it stops people from a. just voting for their own set b. prevents bandwagoning since the "leader" is harder to keep track of and c. lets options that otherwise are not as well known / used / experienced as the "standard" sets in the thread (Terrakion, Garchomp, and Volcarona for example) a chance to actually come out on top (for example jynx).