"Collectives™ on Stack Overflow" can they trademark "Collectives"? That's just a generic and common governance structure (and one that, as far as I can tell, th

"Collectives™ on Stack Overflow" can they trademark "Collectives"? That's just a generic and common governance structure (and one that, as far as I can tell, they don't follow). There must be existing "X Collective" sites that are Q&A sites or forums or similar?