I worked with a large media company a few years ago on a product like this; long story short YouTube pays the big content creators to stay on YT. Getting a crit

I worked with a large media company a few years ago on a product like this; long story short YouTube pays the big content creators to stay on YT. Getting a critical mass of content that’s not also available on YouTube is a problem, because you need content to draw an audience and creators don’t want to do a bunch of extra work for no exposure — YouTube is only one revenue stream for the top stars, but it gets them the publicity to monetize their image in other ways on other platforms. So there’s an opportunity cost to using another platform.