You don't think these tip are that great for you. But they're not written for Unix command-line ninjas. They're written for average users (like me) who run Ubuntu or some other flavor of Linux and just use the basic commands. I bookmarked the tips and will definitely be revisiting them regularly to improve my command line fu.

Sorry you didn't get anything out of it, but I suspect you don't need tips like "learn vim" and "be familiar with chown".