Switching the blog "again"

I'm an ignorant first-year Ph.D student who knows virtually nothing, so there isn't much for me to share with others. That's why I have more blogs than my posts: I simply tested how good a service was. At the last time, my impression on blogger.com was pretty bad. For a Korean user, every UI looked unintuitive. Now I discover a lot of improvements, however, and another important reason: I hate my former-ID/nickname I used before! It was too childish! But wordpress.com did not allow me to change my domain, so I had to switch to the service where it was possible... :D