Yesterday, I got up voted for three old questions and answers (exactly three). One of the answers I got up voted for does not even deserve to get up voted. So I'm suspecting that I'm being a victim of serial up voting.
Two months ago Stack Overflow administration subtracted my reputation by 300 points because a friend of mine was up voting all my accepted answers. Since then I have warned my friends to stay away so they cannot bias the process of helping others.
I sent Facebook messages to all my friends asking them were they the ones behind yesterday's up votes but they all denied doing such thing.
What can I do in such situation?
