Open source products will go out of business if they start to offer membership subscriptions. A very important reason is that it goes against human nature and business logic. Human nature is to like better and cheaper services, and today's Internet users are used to using free products. Users are only willing to pay for those unique products. For example, Netflix subscriptions, if the copyright of movies is free for everyone to watch, the movie production company will definitely go out of business. On the other hand, if subscriptions are paid for open source applications, users can immediately find new free alternatives. The migration cost of Lightning Wallet and Nostr is very low. There are very few subscribers who can really pay for a long time. This is why the subscription service of open source products goes against human nature and business logic. 

As far as Bitcoin is concerned, closed source does not mean KYC. If a closed source profitable company can enable more people to use Bitcoin, it is more valuable than only a few nerds can use Bitcoin. WOS and STRIKE have played a very important role in promoting the use of Bitcoin. Only when more people use Bitcoin will there be a greater demand for non-KYC in the future. The Bitcoin ecosystem will be better.