maybe it's not dislike as the term itself implies, but more like she didn't reach the expectations of the viewers for her to be voted as one likable character. ^^
so the viewers doesn't hate her but also doesn't like her that much.
i'm just surprised that pet inko surpassed one of the main cast which
is kitamura... ^_^ if i am kitamura, i would say "ouch, that hurts" lol