I am also not sure why anyone who is serious about his personal-branding as to pay $29 would want to stick to a common-theme, especially when there are so many free super-customizable alternatives. People who are serious enough to pay might as well consider paying someone else to design the personal-theme and have it setup with Markdown somewhere for free.
What's even more disheartening is to see someone who is such a skilled person to ram up the themes from Medium and setup a product with such ease, is the person who misunderstood the Medium and add more product-clutter into the market, indifferent to the work of the designers of Medium with a great and noble vision.
Edit: I said 'misunderstood' because of following
> Medium is great for readers but it is bad for writers.
I am sorry, but it's great for writers, you don't need to be among the elite to share an idea with world. And that's something very powerful.