No, not all of us
Oh, once upon a time I might have. Players being players soon abused me of that. A few times of working out a nice richly detailed star system, and starting to provide said in depth travellog as the characters drop out of jump, only to be asked the same routine questions that didn't even need a complete UWP soon drummed in the lesson.
I know you are stating you don't want to expend the effort to create massive detail when it is going to be dismissed. I don't want to do that, either.
That is why I would be happy if
someone else did it for me. The details would be there if I needed them, but I wouldn't have personally slaved away at them, so if they weren't used, it wouldn't matter so much.
When it comes to developing my own campaign elements, those details can be very helpful to me.
I can't tell you the number of times I have started work on an NPC, and the first thing I want to know is what the homeworld was, and how that likely influenced the NPC's upbringing. The only issue? Most worlds have no information like that. If I want to pick that an NPC is from a world in the Antares sector, I'm toast as far as available backgroud. Then the career begins, and travel amongst the stars, and the situation grows worse if I want to to pick a few key worlds where significant events occurred. I then immediately bog down on NPC history and wind up skipping it in favor of another dull cardboard cut-out. If a homeworld is mentioned, it's just a planet-name/sector-name/hex-reference and it's as meaningless as if I had never bothered.
...that said, I still gen up and detail the odd system just for the exercise and mental amusement. Traveller is great for such idle imaginary doodling whether it be worlds, characters, or ships. I find anyway
It's been a long time for me since I have done that. I have generated perhaps only two solar systems using Book 6, and it was a lot of work and puzzling over the tables. I have never done the detailed Book 6 generation for a world, albedo, temperatures, and suchlike. I have Grand Survey, Grand Census, and The World Tamer's Handbook, but have never actually rolled a world up with them. It is just too much work for too little return.
Back in the 1980s when I actually had a group willing to play Traveller on occasion, it was pretty much a matter of glancing down the UWP line...
Craw 0309 C573645 3 Non-industrial
...and stating:
"Ok, the gravity here is lower than average, you need filters to breath the standard pressure air, there are a few million inhabitants, the government is a representative democracy, and personal concealable weapons are prohibited. The starport is C and the local technology level is 3, so anything high-tech is imported and expensive." I would have assumed they knew about C type starport capabilities and mentioning the non-industrial part would have been redundant.
If I actually had thought up anything unique about the world, it would have gotten a very short note in a notebook that has long since been lost to time.