For what it's worth, here's a WWS parse of the Bear boss encounter from a purely Karazhan/Badges/crafted guilds point of view:
Wow Web Stats (renamed to Patchwerk to make it work with WWS)
Only three people have one piece from Gruul and the druid tank has the trash staff from SSC. No one has killed any boss in SSC or TK so far. The warrior tank is still using greens as well. The warlock has no enchants and shit gems.
So yeah, so far it looks well tuned for Karazhan "farming" guilds (we only have 2 Nightbane kills so far). Next stop Dragonhawk and Eagle I guess.