I did the same with an Inquisitor, there seems to be no level limit on the class quests so I wouldn't be surprised if you could finish off the whole thing early on.. and as you say, there's no level req on the rewards
There are indeed many places where music plays the problem imho is that it's short and not looped...
*scurries off to extract the music from the .tor files*
Ignore AND friends list should be on account level.. I have yet to play an MMO that has that though, and why that's not the standard I'll never understand
I find that I lose out on lots of exp, codex entrys and whatnot when levling stealth classes. It's just too tempting to speed through the quests and then I have to compensate for the lost exp in other ways.
You could turn Metro off and get the start menu back in the early builds by changing a registry value, did they remove that? If so I won't touch Win 8 as I detest Metro...