Is it still true that Ghost doesn't deletes images if you delete it from the post?

I just found this post:

And yeah, that actually makes sense for me. I guess I’m overthinking. I rarely deletes an image, and if I do, I will be using more 200~400kb more of hosting, wow!

Haha lol.

Either way, if someone knows anything about this, I would like to know just for curiosity