The overwhelming majority of players are in the sub level 30 range of the game at this point, taking their time.
High level planets have max 6 players, no one is doing world pvp in Illum. People don't talk in chat, and i takes around 3 hours to find a group to flashpoints. What is this, a single player game that i need to pay monthly fee for? No thanks.
Now that i'm 50 and i've finished the story i guess... that was it.
Rushing to level 50 comes with a price, and that is that it's pretty lonely at the top for a while.