Super-guild has already cleared Naxx

[Concillian]

The achievements, on the other hand, are ridicilous, since many of them are arbitrary handicaps (Perhaps I should try raiding blindfolded. Maybe that will make it challenging) or just ridicilously frustrating.

I kind of like the idea of a hard push on a user adjustable difficulty knob.

Ye old timed Strat run was a great deal of fun. I did it a bunch of times when I didn't have anything to gain from it. I look forward to the challenges like 9-man 10-mans and such.

Most great games have some level of handicaps to make them difficult. Look at the number of Lurker Lounge people who had to make arbitrary limitations in order to make Diablo or DiabloII difficult.