This HN post is actually a perfect opportunity to demonstrate an important detail of the fediverse. See the post links to mastodon.xyz, one instance. I replace

This HN post is actually a perfect opportunity to demonstrate an important detail of the fediverse. See the post links to mastodon.xyz, one instance. I replaced mastodon.xyz with my own instance and only got two posts. So each instance has a fairly unique perspective based on its federation. And that federation is decided through mainly two factors, what its users follow, and AP relays. AP relays are just a cheatcode that gives a small instance a lot of federation by subscribing to relayed "toots" from other instances. But the true federation magic happens when users follow other users. So clearly there is very little (almost none) overlap between my instance and mastodon.xyz because the only mention of this tag was rom 2017, and one linking the HN post now.