This concept of web3 makes no sense to me. It seems like these are "regular" concepts with blockchain shoehorned in. For instance, I see some web3 messaging th

This concept of web3 makes no sense to me. It seems like these are "regular" concepts with blockchain shoehorned in. For instance, I see some web3 messaging thing and it always fails to explain why the blockchain is there for. Sometimes it feels they create a problem only to justify adding crypto to it, when it could be pulled out and replaced with "traditional" tech, but I guess that wouldn't make gullible investors to part with their money? What am I missing?