You know i never had a problem with this even when reported. All my accounts have a different name on them but using the same billing address and credit card number. Ive been reported before and been asked if they were my accounts i said yes cause they technically are. But i have never been banned on any of them. Not sure if the trace to your wow folders and ip addresses are noticed by blizzard. But with this being said i think if blizzard notices they come from the same ip address all the time and they are not being abused then i dont think it matters. So i am gonna find out if not i wish there was a way to change names on accounts cause i found one problem i cant transfer characters lol dammit. I should have read this site before making accounts so i knew you could do that with same names on all accounts. I mean ive done this before in socom 3 mulitple accounts for exp gaining rank up rooms but i had to make all different names.