nostr:npub1z4m7gkva6yxgvdyclc7zp0vz4ta0s2d9jh8g83w03tp5vdf3kzdsxana6p

What are the better safer channels out there he's talking about? 
What are the VCs that did "capture" nostr? Jack and Ten31 and OpenSats and.... ? 
Why should anyone care if it is or not comparable to Bitcoin?