I like learning from other people sharing their config files, but my attitude towards oh-my-zsh is similar to that of the author's co-workers in that I don't want to install a bunch of customizations that I don't understand. I couldn't find a summary of what all oh-my-zsh is supposed to do and the source has grown too large for me to read it quickly. I guess I trust code I haven't read most the time I am using a computer but it feels wrong to me to allow my shell to auto-update customizations that I don't understand.