Haha, you are still a newbiw even though your rank is high.
If you notice from lots of threads, that is Rin Kagamine who dislikes her old username. After this, everyone calls her Rin. She was once leave this place rather long to let others forget her old name, and calling her with her new name. Rin Kagamine is a good and cute name, though.
Yes. YoshiKong is an Australian user, he is 15now.