Thank you :),
Yes, the addon will be 10 years old this November, I will probably write some blog post about my journey as addon developer, since this was my very first addon.
The Japanese translation is indeed terrible and will be removed along with other languages in the upcoming release. I made a huge mistake and did a (poor) machine translation as experiment, I'm sorry about that.
I will try to release it in a near future.
Best Regards,
Juraj Mäsiar