No, instance A sees no comments/posts by instance B users regardless of if it’s on instance C.
For example, Beehaw defederated my instance.
They could be commenting all through this thread and I’d never know.
Edit: okay technically not here because they defederated LW too.
Edit2: so to be clear, if your instance defederated/blocked dot ml then they wouldn’t be able to interact with your content at all, votes, posts, anything.
No, instance A sees no comments/posts by instance B users regardless of if it’s on instance C.
For example, Beehaw defederated my instance.
They could be commenting all through this thread and I’d never know.
Edit: okay technically not here because they defederated LW too.
Edit2: so to be clear, if your instance defederated/blocked dot ml then they wouldn’t be able to interact with your content at all, votes, posts, anything.