Being able to run Blender from the command line lets you do batch processing, integrate Blender with external tools, build your own pipeline and more cool things.
Here is a quick snippet on how to use Blender’s CLI:
If you liked it, you’ll probably find my Blender Python Cheatsheet useful. It contains more such snippets on various things you can do with the Blender API.
While no doubt useful to some, I’m not sure this is the best place to advertise it- and even if it were, the post you made yesterday is sufficient don’t you think?