Ah, yes, as if Linux is not enough as a community driven OS. Let's make other one! Where anyone can make crappy software and be offended if someone pointed it out! I appreciate the idea of making a difference (I badly want to have and use an unproblematic OS), but making an OS out of the lack of another major alternatives is just... a waste of time!
"Ford already made a car! Making another one is a waste of time!"
"IBM already made a computer! Making another one is a waste of time!"
"Nokia already made a phone! Making another one is a waste of time!"
People choose projects they're passionated about. The majority will likely be a waste of time in the grand scheme of things. Who cares? It's what they want to work on. Is it likely to overtake Linux? No. Is it likely to gain enough adoption to merit taking a look at it? Maybe.
You don't even know if the way its architected would provide a better way at doing something another existing operating system cannot and yet you're immediately writing it off?