Out or curiosity.
I had 460 reputation points (as demonstrated on the attached image)
Went off answering question and searching for relative answers using other tabs on the browser.
At some point, 30 minutes later, I noticed that 10 points were deducted from my reputation.
I received a message on my inbox and also glanced at my reputation. I saw it being down by 10 points. Checked the message which I found to be irrelevant to a rep deduction.
Had a look at my reputation page.
But no such action was recorded. No "downvotes", no "un-upvotes", no "removed posts". Nothing. I did not even have any notifications on the Achievements bar.
Being curious I made the screenshots and rechecked 3 hours later. "Let the system work", I thought. Nothing had or have changed so far.
Out of curiosity. How did this happen? Was it a fluke or a bug?