I'm assuming you've been downvoted because slightly more than 50% of HNers think of this project as an artistic/fun project.

But the fact is, even a purely artistic/fun project will have some creativity or originality in it. I would consider a toy language or Brainf__k written for the first time as artistic.

But this project is just a JIT for Brainf__k, there's no creativity in it, and all it did was give the author some experience writing JITs. In that sense this is an exercise project, and IMO exercise projects do not belong to HN.