> **Possible Duplicate:**  
> [What can I do if I’m the victim of serial downvoting?](http://meta.stackexchange.com/questions/28756/what-can-i-do-if-im-the-victim-of-serial-downvoting)  

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Just got 3 downvotes at once for old, totally unrelated questions of mine:

- http://stackoverflow.com/questions/7892902
- http://stackoverflow.com/questions/7083853
- http://stackoverflow.com/questions/4560497

Could this count as kind of a "vandalism" that I can do something against? Or at least see/know whether this was done by the same guy?