why not replace "private:" with an icon?

I’m using wordpress mainly as an private diary, and thereby a significant portion of these posts should not be exposed. Allowing for a certain number of published posts(approximately 30 posts), it is impossible to set the whole blog password-protected. I, therefore, as most bloggers do, set posts status private(It’s also some inconvenient to change the visibility whenever posting, and embarrassed when forgetting that. Such detail improvements are welcome:) ).

The Problem is: when I logged in to view my diary, the again-and-again suffixes of of each title “private: ” are really disturbing. Users might feel uncomfortable skipping such a string before he can read the title. Why not replace the suffix “private:” with an small icon? (Also suitable for “password-protected: “).