One thing am not assuming is that I personally know 3 people who have admitted to having multiple accounts without special permission, and this has been the case for a long time now. IMO it is not the impression that this site wants to make when the user agreement prohibits it.

I think one problem for Fencer is that he simply does not delete any accounts at all. There are hundreds of abandoned accounts here, and Fencer cannot delete them without making his membership ranks shrink, so deleting these multiple accounts is not in his best interest, and neither is kicking out a paying member. so even thought the user agreement prohibits it, my guess is that unless the user is proven to be using the accounts to boost their ratings, it is in Fencers best interest to ignore the breach of the agreement.