I tried to downvote an answer which i felt the reply was not an appropriate answer. But while doing so, I saw -1 reduced from my reputation score. But this was not the case with some other questions or answers. Why this is happening? On what condition or occasions does a -1 score gets deducted from our reputation score?
According to Help - What is reputation? How do I earn (and lose) it?,
You lose reputation when:
- your question is voted down: −2
- your answer is voted down: −2
- you vote down an answer: −1
- you place a bounty on a question: −full bounty amount
- one of your posts receives 6 spam or offensive flags:−100
I've not seen a case where I've voted down a question without losing reputation. The help section goes on to say the following:
All users start with one reputation point, and reputation can never drop below 1. Accepting your own answer does not gain you any reputation. If a user reverses a vote, the corresponding reputation loss or gain will be reversed as well. Vote reversal as a result of voting fraud will also return lost or gained reputation.
Perhaps you reversed your vote or voted down a question when you didn't have sufficient reputation for your reputation to drop? Its also possible the member left. In which case your downvote would have been restored. See Why do I have a reputation change on my reputation page that says 'User was removed'?