Gruber says: "...the idea that administrators of Mastodon/Fediverse instances should pledge to preemptively block Facebook’s imminent Twitter-like ActivityPub service (purportedly named Threads) strikes me as petty and deliberately insular. ... to me this feels like convicting Facebook of a pre-crime."
To me, this take feels obtuse to the point of intention - or at least self-parody. Smells a bit like the whole "paradox of tolerance" folks like to shop around in debates.
Surely you can't possibly be unaware that Meta (née Facebook) already has a rich history of acting badly, that many folks switched to alternatives like Mastodon as a response to that, and many now express wariness & outright revulsion to that same bad actor wandering into a new party?
My dear sweet summer child, don't be a doofus.
https://daringfireball.net/linked/2023/06/19/not-that-kind-of-open
"The whole point of ActivityPub as an open protocol is to turn Twitter/Instagram-like social networking into something more akin to email: truly open."
The point of an open protocol is to help folks build what they want to build. Not an obligation to welcome everyone into their house.
If I have a full beer keg and you have a tap that fits it, that doesn't necessarily mean you're invited to my barbecue.