I don't use HN but, if you think that it will help MIR get traction, that's cool! I am not aware of a list with projects that use MIR but, want to use it for the programming language I make, for the debug mode. I want to do hot module replacement and MIR seems to be able to do that, in my understanding! And I do plan to make it a big thing and not just a toy language for fun. So, MIR will get a good promotion out of it.
I also saw your fork of MIR, and I was planning to contact you in the future but since you added this reply, could I ask what is changed? If you fixed bugs and added features, I'd love to use your fork and start reading and understand the code from there. I won't start right yet, in fact, It might take a couple of months because my life is not in the best state right now, and I must focus on other things, but, we could exchange some ideas, no problem!