I was on mathexchange, then I realized that my reputation crazily went up by +180 in the blink of an eye! I realized that someone had upvoted almost all of my posts in less than 3 minutes! Then the upvoting was reversed. But how is that even possible? Is it some sort of botnet or some malfunction in the system or what? I'm quite surprised about how that all happened. Is it someone kidding with me or what?