In order to be a respected author and build a personality online, I think we'd all be much better off taking the time and care to build our own personal theme and identity.

Our blogs are our online identities. Using something like Svbtle take all the personality and brand recognition out of it.

For me, I designed my own blog around my personal tastes in minimalism, and the way I want to brand myself: http://kswizz.com.