Yes, you are correct its not good to have multiple accounts. We will take care of it, as for changing your join date.. Its better if we just change your old name.
For the future, ALWAYS contact a mod or admin, we are here for a reason, and its tuff to bother us.
What name do you want? Is it iDVFH.? or something else.
We also have our ways of finding member with multiple accounts, so we would have found this problem eventually
as for spoofing your account, we watch ratings too, and if hes rating the same person when ever he can, we will notice that.