The case thing appeared in some coding guidelines for difference languages (ex: https://www.kernel.org/doc/Documentation/CodingStyle https://www.kernel.org/doc/

The case thing appeared in some coding guidelines for difference languages (ex: https://www.kernel.org/doc/Documentation/CodingStyle https://www.kernel.org/doc/Documentation/CodingStyle). I guess experienced people who wrote a lot of code didn't like to waste indentation level. I do indent case's myself but I think not indenting them is not something to easily dismiss.