The commissioned officer pips were easy to see and read, but I had a very hard time telling what the provisional officer pip bar things they gave the Maquis crew members had on them. They were much more low contrast and the insignia was smaller.
VindictiveJudge
It's about interference with non-Federation governments and cultures in general. The Prime Directive forbids mucking about with Romulan politics, for instance. Worf gets away with a lot of things that would violate the Prime Directive in regards to the Klingon Government because he has dual citizenship and is a member of Klingon nobility.
The ban on contact with pre-warp civilizations is also more specifically uncontacted pre-warp civilizations (you can chat with them if they're already buying Romulan ale from the Ferengi because the damage has already been done) and more generally pre-interstellar civilizations (warp drive is the usual way a civilization becomes interstellar, but there are alternative methods).
Meanwhile, the Klingons put the nacelle inside their BoP. I guess they just YOLO it.
Design notes for the shows have said that nacelles usually work best in pairs and with at least 50% line of sight with each other, but they're not hard requirements. The nacelles in TOS were supposed to be detachable in an emergency but it never happened on the show, similarly to the saucer section.
I think the explanation for nacelle positioning they ultimately settled on during TNG was something about the shape of the warp bubble, but I'm not sure.
Ah, Visitor posting. Now it feels like the old subreddit.