We pass the habrakarma

A similar post was already in my personal stand-elon blog. He appeared there when I had negative karma and I could not write here. But all of a sudden, my karma (I think not for long) turned out to be a plus. The bottom line is: while reading the Habr I often meet this question: for what are we minus? In some cases, everything is clear, but there are posts that are minus for completely incomprehensible reasons. And not only posts, but habrakarma are minus. It may make sense to introduce regulations on minus / plusing posts / comments / karma. Or at least only karma. Those. if a person decided to minus my karma, let him say why.