You can watch the latest dramas and movies as quickly as possible, and you pay for convenience. It provides a unique experience. Just like we can find all kinds of free music on the Internet, but it takes time. A music subscription membership allows me to enjoy music very conveniently. 

Now most of the open source clients on Nostr are paid for all users' subscription fees by #[4]  through opensats. Open source to C lacks a positive incentive mechanism. If jack stops funding that day, most of the clients will go bankrupt.