Thank you for the post.
Before I say anything else I would like to state the Fact that I have kept my subscription active since day 1.
I do not believe population has declined due to a $15 monthly fee. It is my belief that the major problem this game faces is in it's restrictive zones. I have played many MMO's for years and was extremely upset about going to a planet and the actual "planet" was a maze of hall ways or very small (Nar Shadda, Quesh). Some zones are nice Tattoine, Hoth, Belsavis.
I love the full dialog, space missions are a nice change, but where are the mini games (Pazak) there are full casinos that basically are a waste of space.
After leveling 8 50's and doing endgame operations, the thought of leveling another character and repeating the same missions over and over gives me a headache. There needed to be other areas to level at 20,30, and 40 not just the same thing over and over.
I love this game (other than the flaws I mentioned), I love Star Wars, and I still have hope that you can turn it around before it reaches it's demise.