[capnzapp]

I think this is because Traveller attracts those interested in "hard sci fi", which in its old school is very hard indeed.

Things like flesh and blood, heart and warmth tend to fall by the wayside when people go bananas designing their own fusion reactor or grav tank.

That's at least my impression. I recall one adventure compilation for GDW's Traveller called "Smash & Grab". It was an utterly uninspiring laundry list of different military maneuvers, basically using high tech to best one Evil Overlord after another.

That might be the ner'ds dream, to finally be able to defeat the jocks using science, but it didn't leave much room for characterization of PCs and NPCs, no intrigue, no drama.

Very hard sci fi indeed...