I got this and lost 5 reputation. What did I do ?
-5 today -5 9 mins ago removed User was removed
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As Seth indicated, when a user account is deleted, the votes they cast are removed from the system.
In this particular case, we uncovered a fairly massive ring of users who had been committing vote fraud in [iphone] and [ios] for the last two years. Most of these accounts were removed, as well as some of the plagiarized content they had been posting. Unfortunately, it looks like they had also been voting for people outside of their ring, so some people active in that area will see these votes be removed. Most of these accounts were fake, so the votes weren't legitimate to begin with.
If it makes you feel any better, I just lost 225 points from the removal of this same group.