Earth shock used to interrupt and its cool down was either shorter or equal to the length of the silence so if they interrupted you once, you were effectively not casting ever again that fight. =[
Frost shock used to hit like a truck and the snare effect lasted longer than its cool down and had no diminishing returns so effectively if a shaman got you with it, you had no choice but to fight it. This lead to the popularization of FROSTSHAWK!
http://www.youtube.com/watch?v=q5mD1...eature=related
Iron Forge lagged to high hell. This lead to calling IF, Lagforge.
Death Coil did not always have a fear component to it and it did not heal you at all.
Fear used to last "forever" It was a lot of fun fearing people to their eventual deaths as a warlock.
---------- Post added 06-19-2010 at 10:02 AM ----------
Warlocks had to do a quest chain to get a Doomguard and they had to hope a grimiore would drop from LBRS (the least popular instance at that time).
Doomguards were beastly back in vanilla. My curse of doom killed the boss AND spawned a doomguard. The DG then proceeded to kill the remaining 6 raid members that were standing.