My instance preemptively defederated from Threads, but I’m assuming those ads are going to be served to Threads users via API, right, and not federated out?
Things don’t really federate out with ActivityPub, they federate in. To receive off-site content, you have to subscribe to it.
Right, and I’m assuming Threads works on the Mastodon-style user follow paradigm, which means, currently, anyway, Lemmy wouldn’t be able to follow them directly.
But the ad-bot could, in theory, tag a Lemmy community and have that show up on Lemmy (at least, that seems to be how Mastodon content arrives here).
Things don’t really federate out with ActivityPub, they federate in. To receive off-site content, you have to subscribe to it.
Who is going to subscribe to a Threads ad bot?
Right, and I’m assuming Threads works on the Mastodon-style user follow paradigm, which means, currently, anyway, Lemmy wouldn’t be able to follow them directly.
But the ad-bot could, in theory, tag a Lemmy community and have that show up on Lemmy (at least, that seems to be how Mastodon content arrives here).
Another bot that may be running on your instance, so all those things start showing up for everyone else.