I don't tell anyone what they should do or what to think. If you can tell me that you're using exactly ZDB platform instead of using Nostr, it's your problem.
Google and Facebook made their chatrooms only for their users, no matter XMPP or something. And direct connection between Facebook users and Google users inside their ecosystem never was the feature for the understandable reasons.
Today I'm using Nostr. I don't care if it will die, or there will be cool fork, or bigtech will develop a new superapp. And I don't care if everybody will forget the word Nostr. I don't care what is going on in Google's or Facebook's or ZBD apps. Now you're user of Nostr protocol, and zbdists too, just like me. That's what I'm talking about. If they wanna pretending that they are in some kind of universe is their business. I'm not trying to convince anyone, I'm talking about the actual situation.