content: Seriously, this is just another stupid rant by a guy who gets angry at everything...  And has contributed more to this world than most living beings, so I'll take what he has to say seriously. My opinion is that people would be fine with case-sensitivity if it was forced on them. Not having it causes many ambiguities and "glitches" such as "you can not name your file that since a file with that name already exists". People have learned how to use word processors, email, a web browser, as well as putting up with OS bugs for the longest time; even if sensitivity isn't "user friendly" it isn't as bad as the "this device is busy" errors that windows has had forever.