I am not good at Japanese well. So I use Google translator to understand your posts. I feel Google translate 80% of your post. If you worry about long post, how about writing English And Japanese version separate? I think checking the posts of @normalbro will help you.
I checked the posts of @normalbro. As you say, writing separate posts in each language is kind for readers. But in our community, one posting per day is recommended...
Anyway, the information you gave me was very helpful. Thank you, @daegu :D