Yesterday I loose 10 rep. I can't figure why.

-3   yesterday
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+5   10:46     upvote   How does formatting works with a PowerShell function that returns a set of elements?
+2   09:41     accept   How does formatting works with a PowerShell function that returns a set of elements?
-10  15:19     removed  User was removed

The "User was removed" is not clickable, and in my profile, I can't see anything in my activity related to this reputation lost.

Can you enlight me ?