Conversation

No, there is no sense in which Meta joining ActivityPub is a good thing.

Companies like Meta aren't going to join the Fediverse and play nice, they are going to join with the mentality of Embrace, Extend, Extinguish.

Sure, they'll play nice until they have 90% of the entire userbase, then they'll do whatever they like.

Don't want your posts indexed for search? Tough, they'll add it. So you'll Fediblock them? Fine, now you just cut yourself off from 90% the Fediverse, not the other way around.