Those questions weren't answered because no explanation of "reputation" was given. That's like me asking "Why doesn't Q2A have asdfghjkl?" It makes no sense without explanation ;)
Also, if you're the same person who has asked 5 other similar questions, you should have gone back to check them, since several comments were posted, asking for clarification.
I'm going to take a wild guess and assume this is about giving users with higher points more powers like editing etc. In which case - this is coming in the next version! Now stop asking ;)