Twitter has no real incentive to use ActivityPub
1. They don't control ActivityPub. Anything added/modified to the protocol will be seen as Embrace, Extend, Extinguish
2. No Fediverse instance will federate with them so it won't matter to them. Well, no one with common sense, which I hope covers most sysadmins
3. DRM is coming to a TL near you. Think of HDMI "proto-cables" connecting "producers" and "consumers"
4. Money (See no. 3). Want in? Here's a federation key with your subscription fee
So it looks like folks are getting hung up on No.2 for this on account of unsavory admins who federate with everything
The point of this toot is to show why Twitter has no incentive to use ActivityPub
Take a gander at https://joinmastodon.org and see which ones actually federate with those types of instances
Twitter is about numbers. Really *only* about numbers, you could say. ActivityPub is the force that binds all this together and Twitter has no incentive to use it
@kyzh "Half" is a bit uncharitable, I think
Would people create instances to federate? Sure, but it won't be via ActivityPub. Again, this is about why they won't use that as a protocol
In the end, Twitter is a business. They need to maximize users for the ads
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