I found yesterday that the mail icon may not actually show up for the Founder's medal. Once I checked it with my guardian, it magically appeared. And one other thing, I'm too lazy to read through all 9 pages to see if tsomeone pointed this out, but you only get a short timer on something AFTER you open the mail.

That level 12 is an Auto clicker bot farming the chest, make sure you report it and every other player camped out at unprotected chests. As for the white crystal, everyone is correct, you use it to spawn a Champion Force Ghost that drops one of the two purple ingrediants for the Magenta Color Crystal.

Magenta is NOT empire only, just clarifying that. And cyan is found in some Republic PVP lightsaber gear, but its not a removable crystal.

Later on you can get schematics for +power. In fact, one of the 400 Artifice Magenta crystal schematics is +33 power.

Its just a force taunt, Challenging call and Taunt don't generate threat. My biggest problem with tanking and threat management is the lack of skills that explicitly generate threat (i.e. hilt strike) on top of threat generated by damage. The build I currently run so far (successful Taral V and False Emperor HM) doesn't have Guardian or Overhead slash. When I get home I'll edit to post my build, but it focuses on maxing Force Sweep's damage to generate AOE threat. Its one form of the Defense/Vigilance build. Also something to note: If you don't use Guard, you should. It helps redirect damage away from a DPS target to you, as well as solving part of the DPS threat problem. Just make sure that you get a feel for the max distance you can be from the person you are guarding as its range is not that far. I suggest putting it on the person you are having the hardest time holding agro from. I know this sounds strange coming from a tank, but you don't HAVE to hold agro on everything you are fighting at least in flashpoints. 1 DPS can tank a strong or normal mob fine while they blow it up as long as you are holding the champion/elite.