I noticed inside romulan ships you can sit down anywhere theres a chair but when I checked my fed ship,the ship's lounge was still a no sit zone. mentioned it in another post. Ship interiors are ment as social zones as well as having some game functions which is why we have the invite thing, seems stupid that only romulan ships would have the ability for people to go in your ship's lounge and sit down at the bar or one of the tables
Hands up who has deliberately jumped into the singularity after hearing that falling into the pit was possible! O/
Besides, I look at it like this: if you as an ensign or crewman are not smart enough to not jump into the giant spinny ball of shiny death, there's no way you'll be able to outwit a epohh, let alone a Tal Shiar, Section 31, or KI agent. All told, the lack of railings is doing D'Tan a favor.
(And if the ship shakes and you fall in on accident, well, it's clear the Elements don't favor you. See above.)