Today I encountered a very strange behaviour. A comment of mine had its vote status changed, but I realized that the original post where it was had already been removed (or hidden, left as a draft) before the change. In this state, noone should be able to see the original post, or only the OP should be able to, if it were just changed back to a draft. Therefore, the vote status cannot possibly change multiple times, as the only one who can possibly access the post is the OP. So I came to think, is the system account manipulating the vote status? Of course, there are unknown parameters that affect the contribution score, and I don't really mind that. I don't really mind my contribution dropping either. (actually I would tolerate it dropping to somewhere near Sparky_Master_WCH1226's score even) Still, I think the contribution system, or at least the vote system, should be as transparent as possible, reflecting actual votes made by actual human beings.
Hence, the question. Is the vote system rigged?