Op here. I agree. I bought this theme on themeforest because I wanted to play with twitter bootstrap and it was the only theme using it. I like some aspects of it, but the post readability is not great. I'm not much of a UI/CSS guy, so anyone with suggestions on how to improve it are greatly appreciated.

You may find this useful: http://www.readability.com

I never use it, but Safari's Reader will actually make the text readable with no need for an additional tool.