Unfortunately for Reddit, Reddit seems tailor made for federation. It’s nothing but topical sub-sites that already have administrators and audiences.
@murtaugh the trick is the actual value of reddit is having a frontpage that surfaces the best from across all those communities, and that kind of aggregation is politically touchy for federated systems, I feel.

@atonal440 @murtaugh I don't follow.

When a user logs in, they only see content from the communities they follow. I assumed that process was automated on Reddit right now. Shouldn't a federated version of this experience basically be fetching the top list from each community hub?

@dotproto @murtaugh reddit got off the ground because even logged-out or new users saw the best of r/all, and a popular post anywhere could reach the whole site. It's a bit tricky to do this technically with federation, but more importantly it's something that a lot of people actually find unpleasant: getting way more attention than you bargained for isn't always good and there's pressure in these federated systems to implement anti-virality controls of various sorts.
@atonal440 @murtaugh As a longtime Reddit user I get no value out of seeing posts from subreddits I don't follow.

@rcade @murtaugh because you're a longtime reddit user, not a new one. You know what you want out of the service and where to get it, others don't and need that kind of algorithmic direction.

I think this is one of the challenges for mastodon, too, to be clear. It's a great set of tools for people who know what they want from a microblogging service, and nothing for anyone who has a less well defined set of needs.

@murtaugh @J12t I've long felt that if Discourse supported federated login/profile it could destroy reddit