The thing about IP numbers is they would need to be a 100% exact match to be able make a claim that someone was using more than one account access a forum. If you had that and then could trace it to a location that is the same place, you could assume it is the same person. However, my husband also has a Yuku account, so it is still possible to be wrong about who is using multiple accounts. Also, as long as a person using multiple accounts isn't making trouble, why would it be an issue?

Obama is a CHICKEN HAWK!