Hot take about the fediverse: Maybe the solution to the oft-mentioned problem where we don't always see all replies to a post is that we shouldn't be _able_ to see arbitrary replies, except for posts from people that we follow (including boosts), and of course, specific profiles that we view. A corollary is that maybe random folks shouldn't have the right to intrude on someone's notifications with replies to their posts. The result would be more fragmented but possibly better in some ways.