as a community, we put our foot down with Meta and say “no, this is our house. If you don’t adapt to us, we don’t federate with you. If you deviate from the ActivityPub protocol or our other implementations that we do above the ActivityPub protocol (things like boosts/upvotes/downvotes standards as agreed upon by Lemmy/kbin, for example), you will break federation with us, and we will be okay with that.”
I'm afraid we will lose if we accept them until they do something bad. Given their track record, that's just a matter of time. If we let them become important to the fediverse as long as they play nice, the final decision could be disastrous for the fediverse when they stop playing nice.
So the right thing to say seems for me: "No, this is our house. We don’t federate with you."
shepherd
Aurora_Borealia