Liking, with or without unlikes, isn’t appropriate for a proper vote.
In a properly vote there should always be an absolute minimum of three answers, for example:
- Yes
- No
- I’m not bothered either way (or don’t konw, or similar, depending on the context).
In other cases there might be more, and might need multiple selection from the available answers:
- Red
- Blue
- Green
- Don’t care
- Other (please state):
None of this can satisfactorily be done in up/down voting.
If I remember correctly, there’s a way to post a “proper” votes with plural options in the opening post of a thread. That’s the best place to have a vote.