If you look at my comment(s), I have only have one that has +4 points and I have no blog(s)(except this). So why is my contribution -1 ? Why does Codeforces hate me :p? Ps : It is -5 now but my main point it is how could I get -1 without writing any comment or blog.
It's -4 right now :P Basically votes from guys with higher ratings are considered more valuable so if 4 unrated coders and two greens upvote you and then a red downvotes you, it's most likely that you will have negative contribution :)
-6*
-15 haha you are so noob
My contribution was also -1 before I post anything. And I dont understand why do you downvote. Do you treat like that when someone asks for help ?