Comment 6 for bug 59351

Indeed, I find it rather elegant that we are using the same argument rather than trying to add two arguments with a different meaning.

"quiet" - don't give me any unnecessary messages during boot

That means no kernel debug (just errors), no boot debug (just errors), etc.

By removing that, you're stating that for some reason you want to see scrolling messages, probably because you're debugging something or just bored. It makes sense that it activates everything.

This is why the initscripts/lsb-base follow the same message, and will not output to the console if "quiet" is found on the command-line