Firstly let me start by spotting out the fact I have literally gotten negative Karma more than once but my question is for what reason?? Of course many members here teleported from bitcoin talk and so they should know me and how I post. Lets just say I'm not a spammer coupled with the fact that I'm quite good with technical discussions on average. I don't post garbage so why the negative Karma like for what reason?
Everyone should have noticed that Mia never insults even on bitcoin talk, I haven't criticised anyone either.
If you think someone is giving you negative karma on purpose, like without any real reason, then you must report it to the admin, as last time there was a member who experienced the same thing, and he reported this behavior to the admin, and he looked into it and came up with the results that the member was saying was true, so for compensation, the admin rewarded him with some karma if I am not wrong (I am not very sure about the refund of karma, but you should search for it if you want).
Getting negative karma without knowing the reason is a total frustration and there are chances that someone doesn't want you to get any karma or there are reasons that someone actually giving you negative karma for some real reason. If you want to know who has given you the karma, as in positive and in negative, you can apply it here
The Eye of Sauron - See who gave you karma