Nuances and Secrets of Morrowind

So I was taking a look at a lot of the morrowind secrets, and I realized that there was a lot of immersion to be had. More so than I realized.

Like the priests robes contain writing "Faith is only law" And "Learn by serving" on the sash that comes with it.

Or the morag tong assassins with that jewl that has a bit of writing in it? It means "I am your death", in daedric.

Or how about the ashlanders garbs which were more animal skin based, while the grazelands were more plant fiber based?

Or the coded messages found around morrowind that actually have meanings if you know a bit of cryptography.

Hell even being able to reseal coded messaged if you have a high enough security skill?

There are many more out there that I haven't listed, but my question was are you going to be implementing any of these into world?