How many users have you folks gotten to register?
(Good candidates for metrics that I should be worrying about might be "number of players who hit our internal bar for outreach", "percentage of that population who would like Starfighter to give them options", "count of successful placements", and "revenue." You'll understand if I don't publish a /stats page with those numbers updated in real time, even though the thought certainly crossed my mind a time or three.)
I have limited bandwidth for free-time coding, and anything has to compete with my own side projects and "list of things I need to learn/revise to keep head above water in notoriously mercurial industry".
If I were to invest time in Starfighter, I'd need to know that, assuming I do my part and finish the game with a reasonable score, that a) it will land me an interview and b) it will do sufficient pre-vetting of my skills so that the interviewer doesn't need to throw whiteboard curveballs. If I saw some kind of metric on job placement I might think it's worth spending time on. Otherwise my time would be better invested in improving my Github profile and resume and building my network.