I think all this talk about seeing nobody around is due to the fact that people usually play on weekends during peek times. Add in that people are still trying to grind out characters ( new game) and they usually do that inside the quest instances and it adds up to not seeing anyone around.
I don't see anyone around at 9am on a Tuesday, but I don't expect to. There is a gank fest on Hoth on Saturday at 2pm.
But where is the solution? No more quest instances? A game where you end up hitting an area full of people camping one respawn group because everyone has to kill 60 of whatever that group is in the same instance?
At this point the game needs to get people to buy the game, pay the upfront costs, and they wont do that if the game is only playable for level 50's. You cant put a game out and have great endgame content in the first 2 months, the market for those players does not make financial sense and the people who ding top level in 2 weeks are going to complain no matter how fast you add new content (it takes more than 2 weeks to program new content).
Slow down, enjoy the game and play another class, or even change faction and play a republic class.
Or experiment with LSD. That will fix the problem for you also.