I cancelled my account today because I'm unable to find enough guild mates, friends or people online with any interest in running FP's or any group content.
I used the LFG tool in WoW every day to run dungeons and heroics, I found it met my need for gameplay in a 2 hour timeblock. I rarely ran into loot, social, or group issues that continue to get mentioned here. Actually it opened up more content and a more diverse player base than I had been accustomed to. Which in turn enhanced my gameplay and allowed me to stay a member of the community for a greater period of time. In other words, it was fun and I enjoyed the unique challenges that came with unique random groups. Not just the same 4 or 5 guild mates running through the same content like you have now is SWTOR.
SWTOR has a great deal of improvements and enhancements to make before I or any of my friends even begin to think about coming back.