Today I lost reputation because a 'great' user downvoted several of my questions (I don't know why) Then this message appeared in my notifications 'Several voting was reversed' so I have my points back :). Is it possible to know who was the 'great' user that downvoted several of my questions?

I am unaware to possibility to find out whose votes were reversed. You might find a bit about hits if you search on Meta Stack Exchange or Meta Mathematicds.

I only found this - it is not exactly what you are asking but you might find some information related to your question there: Do moderators know who downvotes? and What to do when you know who serial downvoted you?

This question is about voting in general, not about serial voting: Is there a way to see who voted on your posts?

Another related posts on Meta Stack Exchange: How to identify a downvoting stalker.

hey there, anyone online?

@quid Thanks a lot! Not urgent so no hurry. =)

May I ask to moderators, if possible, to remove the following comment?chat.stackexchange.com/transcript/message/44154994#44154994 Thanks!

@quid @JyrkiLahtonen Please kindly evaluate the request here above. Thanks!

what's your side of the story @gimusi? I'm willing to listen as "impartial" observer; if you want

@JyrkiLahtonen: Hello! Is it convenient to talk privately now? If not, it's okay.

@user21820 May be for a few minutes. I need to leave in 20.

@JyrkiLahtonen Okay then perhaps another time? I don't want to trouble you.

@user21820 Sure. I try to remember. Did you get a chance to talk with quid?

@JyrkiLahtonen Not yet. Don't worry it's not urgent but I just feel like talking about it eventually.

@skull The entire issue was discussed on Meta, if you are interested find the related OP here math.meta.stackexchange.com/q/28331/505767 I would like also your point of view in case you want. Thanks

OK. @user21820

@JyrkiLahtonen Ok thanks and see you!

@gimusi It is better that you ask another moderator. Basically because in coarse terms I agree with the goals of the activists from C.R.U.D.E. Which is why I made my recent meta proposal. Because of our differences of opinions I have promised myself and the other mods not to act in the cases involving your person. Basically, I am worried that I would be biased.

However, I will state publically that there is no evidence whatsoever of gimusi using sock puppets. There are some users who upvote a lot gimusi's posts, but there is no evidence of this being a result of sock puppetrt.

gimusi lost a few points of rep last week due to removal of a user. The explanation of that is that another user had created several sock puppets, mostly to upvote each other, but they were also used to upvote gimusi's posts to a minor extent. The deletion of those puppet accounts hit gimusi a little. That's all.

@gimusi sorry if I sounded insensitive.

@JyrkiLahtonen Thanks Jyrki I really appreciate your balanced loyalty and corectness. Anyway I'm always at your disposal to take into account your point of view and observations which I will take in great attention. Regards

@JyrkiLahtonen Note also that I'm not contrary to CRUDE goals itself and I think that many users here make a great effort and job according to their convictions for the well-being of the community. What I've complaint recently is the use of the chat rooms (and CRUDE notably) for uses beyond their proper scopes and with comments which were potentially injurious for the reputation of some user, beyond the good or bad faith of those comments. Thanks again, Bye.

My reputation has been completely trashed, and I'm still here :-)

The ones who leave and never come back are the ones who take it too personally.

@skull That's good! it means that your a good faith fighter ;)

:-)

@skull I think that MSE is really a great community of valuable people, I want to stay here and enjoy with that but I would leave whether I had the impression that my goals here were completely in contrast with the goals of the community.

try to look at the big picture by visiting other sites in the network

Physics.SE is a good one

@skull Are you kindly inviting me to leave? :)

nah :-)

just giving you opinions

@user21820 you should have gotten a a ping yesterday for a private room. Did this not work? I'll ping again.

I understand why it might not have worked. I hope it will work now.

@MartinSleziak thanks Martin.

@gimusi What are you goals and why they contrast with the goals of the community?

Just curiosity..

@Alt. My main goals are to enjoy MSE, learning something new from more expert user and helping whenever possible less expert user to learn something new and make grow up the community!

@Alt. I'm not saying that thise are in contrast with the community goals, the fact is that I even don't know exactly the goals of the community and I'm not even sure that these are defined in a unique and definitive way.