Re: Worst lines of dialogue in the entire series?
It doesn't work because Janice is human, so having her be batsh** crazy doesn't fit in with Gene Roddenberry's vision of a perfect, utopian future for humanity where all our problems have been solved.
You're confusing TOS with the spinoffs. It wasn't until after TOS that Roddenberry was infected with that particular foolishness. The characters in TOS were wonderfully flawed and real.
"There are two means of refuge from the miseries of life: music and cats." - Albert Schweitzer