When browsing Fosstodon (npub1j7t…kn6q), I keep seeing posts on my feed that are from accounts I don't follow. They don't seem to be boosted by anyone either. It happens both on the website and on mobile applications.
A frequent example AskUbuntu (npub1ack…4puc), but I've seen a few others.
What's up with this? Why do I keep seeing these?