Well, that's the point. If you want to make the UI clearer (no more squiggles), I'm totally ok with that. Weapon crafting falls under this. Why do you need to know exactly what world tendency does? White = good, black = bad, with varying degrees in the middle. It's much more in the flavor of the game when a Black Phantom NPC appears/disappears because of the WT instead of having a description that said "Evil NPCs will appear at this level of BWT. This adds that air of mystery and the threat that maybe on this try, not everything will be like I expect, so I should still keep my guard up. Why does everything have to be spelled out for you?
You know why people talked about the pendant gift in Dark Souls so much? Because no one knew what it did! People liked that. Imagine if the description just said "This does nothing." Do you think any single person would have discussed that item then?