Didn't see anything like that but I did only skim the reddit thread. I was seeing $150ish 23' monitors for 20ish. Several games for 18, a 175 graphics card for 45 and a 250 keyboard for 45. All prices I could see in a Black Friday/Cyber Monday ad as limited quantity goods for drawing people in. If it was a hack they were picking some rather strange pricing instead of just knocking everything down to a buck or two.
I guess we'll know for sure on Black Friday.
Edit: I also notice they (and amazon) have started with their 'early bird' specials leading into Black Friday already. I'm now almost 100% sure they weren't hacked. Yesterday was most likely either specials getting posted early or someone fucking up site pricing while getting everything ready.