The question is a lot. But I will answer all

1. To keep a position elevated, we continue to voting on his post. So that they become a good place.
2. I do not do such a thing. Yet they do not make my comments
3. People always write my thought in my post. In which they tell the goodness of my post. But sometimes there is no shortage. But they should tell a deficiency. Which can make your post excellent.
4. I do not know anything about this. Thanks for keeping good thoughts