As I said before, they'd have to pay extraneous amounts of money to get the tables needed to crack the passwords. When you pay that much, you don't use it to steal information from a service like steam. This hack job looks like a "See what I did!" hack.
There's much juicier targets out there. Like Banks. Go after their information. Then you can do some damage and see a return on your investment before their security measures can take effect. Hitting steam will just raise a red flag across the board and get the anomaly detectors buzzing.
This causes a few people to lose a few days of WoW while they scramble to unlock their credit cards due to extra sensitive scans for about a week or so. Nothing more.
/golfclap
I have a very low opinion of hackers (crackers, script kiddies, wtf ever,all the same to me). Just a bunch of anti-social, orange fingered, mouth breathers that cannot function in normal society. Otherwise they'd put their talents to use and actually work a real job. Security firms and the government are hiring people with such talents, but these dregs don't wish to get off their asses and fight against a real threat: China and North Korea.
The Israelies and Americans that developed StuxNet. Now they impress me. A precision guided logic bomb that tore the shit out of Iranian nuclear centrifuges.
Oh well, these Anonymous and other groups of mouth breathers will only help keep job security for me in the future.