Yes, yes I know this is an unpopular opinion but let me give you guys an example that relates to this. You guys know email? Well if you had made an email instance and then Google made Gmail, would you guys block it? No. Just because it’s made by a big company does not mean you should block it. What if you wanted to talk to people on threads? What if you wanted more content because there is more users on there? Please don’t defederate from threads people.
Yeah, the email example is an unintentional counterexample: it’s nearly impossible to run your own email server these days and not have your email rejected by everyone because the IP address is unrecognized and the spam filter is beyond reject-happy. To put it into fediverse terms: it’d be like federating with them, but where their CloudFlare DDOS protection blocks ActivityPub requests (this is actually what broke kbin’s federation a week or two ago so it’s not just a hypothetical!).
Yeah, in effect all of email is already federated. Shared protocols won. It’s literally the opposite of what people are imagining is going to happen here.