We unvote for many reasons, including:-
- Mistake in voting
- Members disagree with quality of post
- Suspected plagiarism / related to other abuse accounts (usually blacklist if proven)
It's not easy because there are many people trying to abuse the system so sometimes we are too careful. Not your mistake if you have done nothing wrong :)
@kevinwong thanks for the enlightenment, but in the post that I think no plagiarism, the original photograph belongs to me, except the last photo, and I include the source clearly.
I hope a lot that helped me to be better.