|The names speak for themselves|
Sure you can turn on block guild invites. That prevents a guild invite popping up every few seconds but it does nothing for the automated whispers. Bad grammar, spelling, and leet speak are par for the course.
EQ2 also has guild levelling, perks and a guild finder (or used to at any rate.) which I am sure Blizzard
So here is a top tip if you are new WoW player or thinking about playing WoW: Never join a guild from a random invite or whisper. Any guild worth joining will have a website and an application process and YOU will find them via the forums or their in game advertisement in a respectable channel (General or Guild recruitment) which will then direct you to their website.
And never ever accept a guild invite from this guy: