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Voting is anonymous precisely to prevent this kind of argument from happening. If everyone knew who was downvoting them the flame wars would never stop.
Michael Hardy, don't you have something better to do with your time than complaining that someone hurt your feelings? It's the internet -- not everyone is going to think exactly as you do, and no one is obligated to explain themselves to you when they disagree with you. (Incidentally: you probably got down-votes because the first title is not obviously memorable and the second title is not the title of any work that exists.)
Moderators can look for, and deal with, suspicious voting. If you think that someone has gone through and voted against a number of your posts, you should alert the moderators with your suspicions (via email).
(I don't know if the MO moderation tools are similar to those on SE2.0 sites, but if they are then they may already be aware of this voting spree against you.)
It certainly is impolite to vote against something without leaving a reason why on a real question, but on CW questions the answers are taken more as a poll and so comments are not generally expected (in particular, lest they descend in to an argument).
It is also worth noting (in case you aren't aware) that the '@Name' syntax doesn't work on MO in the same way that it works on other SE sites: there is no notification.
Dear Robin, are you constantly writing poetry, or do you have a compulsive habit of hitting the return key?
=D! (No disrespect intended).
As to the actual question "What is the advantage of such anonymity?":
It's clear that there would be far fewer downvotes if one's names were attached to them. As downvotes are the principal means by which the standards and conventions of the site are adhered to, this would be a very bad thing.
There is a "suspicious voting patterns" area that moderators can access (I believe 10k+ users can't). At the moment, it's not showing any suspicious downvote patterns, though, of course, no algorithm is perfect. Andrew is right that the most effective course of action in these cases is to email moderators@mathoverflow.net.
Also, on the merits of your proposal, we've already had this discussion: http://tea.mathoverflow.net/discussion/265/signed-voting/ and my recollection was that not many people took a similar view of the matter to the one you've suggested.
EDIT: This seems very out of context now; I wrote it when Andrew's was the last post, and then forgot to press return...
It is very clear (from experience no less) that anonymity on the internet alters individual behavior, typically in the direction of decreasing attention being paid to conventional social norms. Typically this is a burden that a site must overcome to maintain civil discourse, but here it serves a valuable purpose in the guise of downvotes (given, of course, that the moderators have done such a good job of keeping textual discourse so civil). I, for one, am prepared to defend any individual downvote I've made, but shiver at the thought of being open to defend all of them.
I, for one, am prepared to defend any individual downvote I've made, but shiver at the thought of being open to defend all of them.
I'm not prepared to defend any individual downvote I've made. I used to make some pretty cynical downvotes..
I would be willing to defend any and all downvotes I've made in the past six months, however.
Michael,
If you seek evidence for Qiaochu's assertion that
If everyone knew who was downvoting them the flame wars would never stop
look about you.
Well, here the votes for closure are not anonymous...
I don't understand the point of this thread.
The word "would" appears here. Assertions about what would happen, if not based on experience, should not be qualified with the word "clear".
To clearly convince you we'd have to ruin the site, then. Cool.
@Michael:
Isn't that the whole point or something?
I think what Harry is getting at is the format of the site has the voting as an integral component.
Yes, but I was too lazy to type out the explanation. Thank you, Ryan.
Michael, if you 'look about you', you will see evidence that some people take down-votes personally enough to start long threads on meta complaining about them.
+1 Mariano & Ryan.
I'm sic of this discussion ... (sorry, couldn't resist).
The term "flame war" is emotive so let's avoid it.
Voting is anonymous because this site (and its siblings) are places where discussion is deliberately discouraged. Oftentimes, I get into a discussion with someone about an answer or a comment, and it quickly swamps more time that I would like to devote to this site. Due to the nature of this site, I usually - with a clear conscience - simply stop participating when I feel that a "discussion" has started. If I had to leave my name every time I voted, I would not vote because although I feel that I could defend every vote, I really don't want to have to because I haven't the time. I want to be able to come to MO in a spare 5 minutes, have a quick look at what's going on, see if I can help in any way, then leave.
Part of that "seeing if I can help" is to comment on others' work. The purpose of MO is to get quality answers to quality questions. As "quality" is in the eye of the beholder, the more beholders, the better the judgement of the quality (to a first degree of approximation - but that's a different discussion). Since I want to do this quickly, I want to be able to just say, "Yup, this is good" or "Nope, this isn't" without getting in to a huge discussion about it. I do try to leave a comment if I think it will help, particularly if I am voting against something. But, as I said, on CW questions I'm less inclined to do so - partly because I don't think that anyone can justifiably feel put out if I vote down on an answer to a CW question and partly because I don't really like those questions on the MO site so rarely look at them and even more rarely vote on them.
So voting on MO is an integral part of the feedback mechanism. It's like the wikipedia talk pages, only faster. But as with wikipedia talk pages, the voting is not the thing, the whole thing, and nothing but the thing. It's merely the eminence grease.
@Michael: I have participated in many flame wars on wikipedia.
I don't follow. Could you clarify the question?
Maybe things are different now, but when I was a wikipedian, every deletion thread I involved myself in became a flame war.
"The good old days".
Anyway, the value of anonymity is that you need two people to argue.
You need two people to flame war as well.
Micheal: it has lead to surprisingly few flame wars around here, at least. Most of the little heat I' ve seen on MO has actually happened in comments and answers, where there is no anonymity (apart from the inevitable amount of anonymity provided by the fact that you really have no idea of who, really, "Mariano" is, of course...)
As I said earlier, I don't see the point of this thread. Are you aware that "we" cannot change the fact that votes are anonymous?
Meanwhile, this is another reason why you should aspire to become a moderator. Then you can see who downvoted you and exact revenge.
Wait, you mean Mariano is a he???? I always thought that Jarah Mariano was posting here: http://sportsillustrated.cnn.com/2009_swimsuit/models/jarah-mariano/09_jarah-mariano_15.html