Resteem bots are an interesting idea, but the issue with those is that they can overrun your feed. But they can clean out some of the junk and pollution through cross-tagging. But you could incorporate those with additional filters to create some interesting feeds. Or you could find a way to extract the posts from those bots and build an application on top of those bots.
I foresee that some curation organizations will develop in the future such that they simply resteem content, but spend copious amounts of time looking for specific posts, hire qualified writers, etc.
So Heroku manages and owns subdomains of herokuapp.com. They allow you to deploy small applications on their servers for free and then charge you if you want to scale up. Unfortunately, I don't own the domain or server space.