The founder / main developer of Korora is on break at the moment. So the project is still under active development, but it only has one core programmer right now--the rest are just testers, packagers, documentation, etc. Fedora is often seen as a more "advanced" distro (in the sense of learning curve, not functionality) that's either used by Sys Admins or bleeding-edge kernel lovers, and so the batteries-included approach of Korora sometimes fails to attract a large audience, who would otherwise pick something like Mint if they want a more curated experience.
The Korora team does not frequent this sub. They prefer that you use their Engage forum, or their IRC channel. I'm a Korora contributor and in touch with the team, however, so any questions posed here that I can't personally answer, I can forward their way for help. I personally see value in having a community presence on Reddit, since many people want to use their existing account rather than creating yet another login.