I think there is a misunderstanding here, I'm not involved in any web3 stuff I am just discussing it. I think whether or not you or I think it is a good idea or not is irrelevant because the reality is that there are people that are working on things because they think they are good ideas, and there are people investing in those things similarly, even things you would consider ethically questionable. It happens and will continue to happen.

Facebook doesn't need to build it all themselves, they just have to make the platform that everyone else will want to build on, just like what all of the current tech giants have done for the past 20 years. The idea isn't about chasing trends (or even something specific like a "metaverse"), it is seeing where innovation in happening and hopefully avoiding further concentration of power in the future of the internet.