This one claims 20m paying subscribers, which is not a lot. Mr. Beast has 60m views on a single video.
A lot of weekly active users will use it once a week, and a large part of that may be "hate users" who want to see how bad/boring it is, similar to "hatewatching" on YouTube.
The value extraction will also be much higher. When you control someone's main source of information, they won't even find out your competitors exist. You can program people from birth, instead of "go to a search engine", it's "go to Google" (as most of us have already been programmed!) or instead of "to send an email, you need an email account" the LLM will say "to send an email, you need a Gmail account". Whenever it would have talked about TV, it can say YouTube instead. Or TikTok. Request: "What is the best source of information on X?" Reply: "This book: [Amazon affiliate link]" - or Fox News, if they outbid Amazon.