A lot of their comments seem justified though and it looks like you were learning a lot from it as you mentioned it was your first rust merge.

Also a lot of the delay was because you didn't have time to work on it as you mentioned in 2019 :)

I'm not a developer but I read through the thread to see what it's about. But I think most comments were constructive criticism or just non blocking suggestions even.

Though code quality seems to be a higher goal than in most projects I know, that's kinda admirable too. I can imagine your side too though, it's frustrating to be working on something and not seeing it go forward.