I don't know how many of you will read realm forums, but I came across this one, so perhaps everyone who has lagspikes, can do something to help.
EDIT: The topic seems to change daily, here's the new one...
http://forums-en.wow-europe.com/thread. ... post344312
Actually this should be the blizz techguys issue, but I can see it must be harder than find a needle in a haystack as the problem is so widespread and random.