I've been getting Error 132 since 5.0.4 dropped. It always happened when I open the world map. It didn't occur every time I opened the world map, but every time it occurred, it was when I opened the world map. I tried every troubleshooting method I could think of. No joy.
Since 5.1 though, I haven't seen that error. O.o (I probably just jinxed myself saying that)
I get this even without addons. I think he, or someone else, stated in the thread that he also gets the errors without any addons.
His case might be not necessary based on looting. I had crash in 5.1 while looting too. Got fed up with crashes recently and found out that reason of crashes was bad compatibility of my sound drivers with WoW after one of late Cata patches. So I am doomed to play WoW without sound, as this error appears more and more frequent in MoP. Couldn't find any blue post addressing this problem directly, so no hope it gonna be fixed.
I've been having issues too, my Chatter wasn't playing well with my Stubby (which I only have because of Auctioneer). It was popping up an entire block of error text in my chat window periodically and randomly, even though I have errors turned off so I am not supposed to see them.
Easily solved for me...removed Chatter and downloaded Prat instead.