I noticed that my reputation points go through roller coaster rides from time to time. During the last couple of days, it widely fluctuated between 1025 and 1263. The main StackExchange top users web page is still showing that my reputation as 1263. Are our moderators aware of these irregularities? What is the reason for these wild reputation fluctuations?
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asked Oct 18, 2010 at 13:43
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$\begingroup$ I have noticed that this has happened three times to you. I can explain it if you can explain the sudden jumps in your reputation. $\endgroup$– KavehOct 18, 2010 at 19:29
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$\begingroup$ I think the history chart indicates a fair amount of downvoting, which might explain parts of it $\endgroup$– Suresh VenkatOct 18, 2010 at 19:43
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1$\begingroup$ @Kaveh, If I had an explanation, I would not be asking the question here. Anyway, something strange is going on... $\endgroup$– Mohammad Al-TurkistanyOct 18, 2010 at 21:07
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$\begingroup$ @moderators, Aren't the votes locked after one hour? $\endgroup$– Mohammad Al-TurkistanyOct 18, 2010 at 21:12
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$\begingroup$ @Suresh, this morning my reputation was 1104. Now it is 1035. I did not get that many downvotes that explains a drop of 69 points (according to the link Jukka provided). Could you please check these irregularities? $\endgroup$– Mohammad Al-TurkistanyOct 19, 2010 at 15:05
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$\begingroup$ not sure what locking is in this case ? $\endgroup$– Suresh VenkatOct 19, 2010 at 16:27
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$\begingroup$ I think you might need to post on meta.stackoverflow about this. it might help to document the problem with some snapshots, and combine that with the reputation graph indicating that there's no explanation for this fluctuation. $\endgroup$– Suresh VenkatOct 19, 2010 at 16:30
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$\begingroup$ @Suresh, Locking: when a user tries to change an upvote or a downvote (I think after one hour) the SE engine displays a message stating that the vote is locked and can't be changed. $\endgroup$– Mohammad Al-TurkistanyOct 19, 2010 at 18:18
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1$\begingroup$ i see. also, I don't think you're the only one with this problem (Sariel Har-Peled also appears to have rep fluctuation), so documenting the problems might help build a case $\endgroup$– Suresh VenkatOct 19, 2010 at 18:21
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$\begingroup$ Potentially relevant: meta.stackexchange.com/questions/68112/… $\endgroup$– András SalamonOct 22, 2010 at 11:02
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2 Answers
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Something similar happened to me several days ago. I had a sudden large jump in reputation, and the summary of recent activity showed what look like one person simultaneously upvoting every answer I had ever posted. A day or two later it reverted to its original levels, and the reputation history showed no record of the surge ever happening. Of course, it could be that the user just took back all his votes, but it seemed odd.
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3$\begingroup$ I think that there is a "suspicious voting" script that, when triggered, reverts all the recent votes, which would explain why a jump is then followed by a large loss in rep. $\endgroup$ Oct 19, 2010 at 22:10
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1$\begingroup$ Does this mean that one should not upvote stuff by user? I've several times looked at the contributions of someone who is about to hit a rep milestone, and often found several posts I had missed the first time around that deserved to be upvoted. This generates several upvotes for the same person in quick succession. $\endgroup$ Oct 21, 2010 at 12:14
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$\begingroup$ Let us assume the existence of "suspicious voting" script. Many users experience sudden surges in their reputation. Why is the script selectively targets only some of those users? $\endgroup$ Oct 22, 2010 at 12:28
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$\begingroup$ I am sure I heard mention of such a script somewhere, though I'm not sure where. It may have been one of the podcasts. A quick search on meta.stackoverflow.com yields a bunch of posts mentioning one. $\endgroup$ Oct 22, 2010 at 12:39
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$\begingroup$ @turkistany: It's probably set off by specific events, like one person making many votes for a particular user's posts in a short period of time. Votes by many different people, votes in response to new posts, etc. are probably ok. $\endgroup$– IanOct 22, 2010 at 19:21
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1$\begingroup$ @Andras: I think if you do that you should spread it out over a long period of time. I had another such jump in reputation yesterday, going from 940 to over 1000 and crossing a reputation milestone seemingly due to one user, and it has since been wiped out. $\endgroup$– IanOct 22, 2010 at 19:35
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$\begingroup$ @turkistany: see meta.stackexchange.com/questions/68112/… for related problems. $\endgroup$ Oct 22, 2010 at 21:07
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$\begingroup$ @Ian @Andras: I agree with Ian. Someone sent me over 1500 yesterday, and I'm back under 1500 this morning. This may have happened before, I don't know, but I noticed it this time because the system gave me more privileges and then removed them. $\endgroup$ Oct 31, 2010 at 16:10
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answered Oct 18, 2010 at 14:27
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$\begingroup$ thanks for your help. But the link did not explain the extreme fluctuations. $\endgroup$ Oct 18, 2010 at 14:49
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$\begingroup$ If your current total reputation (as displayed on your own user page) is approximately equal to the reputation shown in the above link, then everything should be ok now. $\endgroup$ Oct 18, 2010 at 18:51
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$\begingroup$ also, the above link, seen from your profile, details every single click that changes your reputation. $\endgroup$ Oct 19, 2010 at 16:28