With one simple change this place can compete with reddit. We need substeemits. Since everything is based on hot, new, trending perhaps the substeemits or substeems could just be a combination view of those. So for instance if I go to steemit.com/javascript or steemit.com/s/javascript it would show me a combination of what's in /trending/javascript and /hot/javascript.
This would likely be the easiest way to implement this.
Edit: I really hope this gets some exposure so the devs know this is a feature we really, really want. Thanks to all those helping to get it noticed.