Yes it says Fediverse. They probably do mean microblogs, where at least it’s a real phenomenon. It could also apply to stuff like Pixelfed.

In the threadiverse, you’re posting in a community, not your profile. It’s on the community to downvote unwanted comments and on mods to remove rulebreakers. In a rare post an OP doesn’t want any advice, like sharing art or a personal story, unless it’s a written rule of the community it’s on the OP to explicitly say so.

You can chat on different servers, so I’d say it’s federated.