It took me a moment to figure out what was going on there (with the whole clippy thing). The bulk of this list is the top commands from commandlinefu which has been on HN before [0], [1].
You can even go meta and install a command to let you search commandlinefu [2].
I have a suspicion that it's actually a kind of targeted example-advertisement for the clippy thingo ;) and did somewhat work for me actually, I do now feel interested in learning more about the site