As long as web browsers have a "view source" option, you can peek around in
the HTML, CSS, and JavaScript all you like. That is one of the beauties of
the web as I cannot "view source" of Microsoft Word's code in the menus.
Maybe that's why a lot of devs choose not to put it under a free software
license and leave un-minified. Anyone can look at their source code at any
time which is not common with most desktop and mobile applications.
I am glad that there is a viewing of source for webpages. It helped me learn
how to do it in the beginning and learn as technology progresses. Even now.