I'm not a registered user. I have seven reputation and eight posts. If I register an account on Stack Overflow, will my reputation and post ownership be reset, or will they carry over to the registered account?
I'd also like to know about the rating system on Stack Overflow. How does reputation increase?
Additionally, I see some numbers displayed for every user (for me it's 7.1). The first number is the user's reputation; what do the other numbers represent?
Finally, what is the benefit of registering on Stack Overflow? After all, one can ask questions here without registering.