Today, my SO reputation decreased by around 160 points. I know that reputation is lost in following cases
- Answer to a question which gets closed and ultimately deleted.
- If the answer to any question is deleted by me (then rep will be lost during cleanup).
AFAIK I had answered to a question which was closed soon, and may be deleted recently. But, 160 rep is definitely not due to it.
Are there any more reasons as to why my rep got missing and how do I know that lost rep is actually due to system cleanup and be quiet?