It unfortunately would not take off at all because corporations love to gobble Microsoft products and proprietary big tech products in general, and LinkedIn is mainly used as a corporate social media type of platform.
thats also the curse of linkedin. imagine theres no advertising. compare it to say the burningman crowd where your art speaks volumes and your chosen name is the legend. an army of banksy's collaborating. there once was a dream of the web, and commercialization wasn't the goal.