People shitting on this but if you are a member of any local groups on Facebook this would be a gamechanger

I'm a member of local groups for a few of my hobbies and what Facebook doesn't do well is make those groups a good repository of knowledge because it's so hard to navigate to find it, or if I miss a day I miss the post.

This encourages people to go back to those posts and keep commenting, keeping it alive very similar to old school forums.

This might not be an overall Reddit killer but it would make those groups more flexible and valuable.